I don't think it has anything to do with religion.
Why wouldn't people attack the Jehovah Witness Folks? Why not attack or hate the atheists?
The predominance of Jewish Folks within our society is certainly not because they honour a different God.
The attention given to Jewish Folks within the media can not be because of the size of their population. (There are only 18 million Jewish Folks in the whole world.)
Again I ask ..... what is it about Jewish Folks that causes such hostility towards them? What is the cause of anti-Semitism?
This part might explain a lot of it between the scattering in 70AD all the way to today. Acts:10 was when God made all Gentile food clean as the last act for Jews alone before the scattering. Saul and the Jews are symbolic of the Jews that were not gathered at that time. God has a mission for the gathered also before all are gathered. The first case of persecution was in Portugal and the food part was probably a good deal of the 'forced conversion' as the 'State' became unwilling to cater to Jews having OT Kosher food only while the locals were starving. The exile from England in 1290 was over money so the money changers were in control by then. 1600 seems to be when the next big change took place.
Where did they come from in the first place is recorded in the Bible and the starting point was in 4,000BC +- 4 years.
Ge:3:15:
And I will put enmity between thee and
the woman,
and between thy seed and
her seed;
it shall bruise thy head,
and
thou shalt bruise his heel.
Re:12:1-2:
And there appeared a great wonder in heaven;
a woman clothed with the sun,
and the moon under her feet,
and upon her head a crown of twelve stars:
And she being with child cried,
travailing in birth,
and pained to be delivered.
Re:12:5:
And she brought forth a man child,
who was to rule all nations with a rod of iron:
and her child was caught up unto God,
and to his throne.
Noah and his family were the last 5 fingered people alive when the flood was determined, if they had been killed Jesus could not have been born and the cross would not have been the fulfillment. God sent Christ so there would be no balking like Jonah did. The details of the other bruise is in prophecy only, there is a lot of it so imagination is not needed, a lot of reading is though.
This summation will not do justice to the 'long version'.
When God does something special for a person he demands a payment. Moses felt inner pride so God punished him by keeping him out of the promised land until he was in a vision with Elias and Christ. He will be at that spot again on the day He returns and all 7 vials kill all sinners in the world in a few hours and then in the few hours that follow that all the resurrections in Eze:37 take place. That is when they are brought home by God.
2Co:12:7-10:
And lest I should be exalted above measure through the abundance of the revelations,
there was given to me a thorn in the flesh,
the messenger of Satan to buffet me,
lest I should be exalted above measure.
For this thing I besought the Lord thrice,
that it might depart from me.
And he said unto me,
My grace is sufficient for thee:
for my strength is made perfect in weakness.
Most gladly therefore will I rather glory in my infirmities,
that the power of Christ may rest upon me.
Therefore I take pleasure in infirmities,
in reproaches,
in necessities,
in persecutions,
in distresses for Christ's sake:
for when I am weak,
then am I strong.
The first step in Mary being the mother of Jesus was Abraham being given a blessing that sealed him from harm so he would become the rather of the man that is the cornerstone of the 12 Tribes. The drama around that and all the way to the birth of Jesus is in such detail to show it is historical rather than mythical.
(Much is required such as being sold into slavery and then your whole family shows up like they are out of the movie Vacation for a short stay of 430 years and then leave without paying the bill.)
The timing and the extermination of the Giants is important but not to this aspect of the book. We are between the scattering in 70AD in Luke:21:24 which is a fulfillment of the scattering part of the De:4:30 prophecy. The 'latter' days starts with the 1st trump sounding, 4 days later Satan shows up with 1 of the fallen angels that was a 'son of God' when the 5th trump sounds. For the next 3 1/2 years it is like the days of Noah and the program is the same. exterminate all 5 fingered people.
De:28:64:
And the LORD shall scatter thee among all people,
from the one end of the earth even unto the other;
and there thou shalt serve other gods,
which neither thou nor thy fathers have known,
even wood and stone.
De:30:3:
That then the LORD thy God will turn thy captivity,
and have compassion upon thee,
and will return and gather thee from all the nations,
whither the LORD thy God hath scattered thee.
The 144,000 are sealed before the 1st trump sounds and the rest of the whole of the 12 Tribes joins them as the last event on the day the two witnesses are resurrected.
Like the OT they never got to reap the rewards of being 'His people'. The wars that ended when they enter that place were replaced by civil wars so there was 'no rest'. The bruise to Satan's head takes place in Jerusalem, the Temple in the times of Jesus was needed for the completion of the bruise to the heel, without that all the ones gathered in the NT could have been gathered like Daniel was and that could have turned into the 70AD scattering as well.
God's version picks up when the 1st trump sounds, the details are pretty clear and today it is promoted by some people with 'clear heads' that Damascus should be nuked based on a single verse. I have a ready reply for that.
God also made a stumbling block for the Jews by John the Baptist being called like Moses was by the message was recorded by a Disciple of his in Greek when none of them were ever taught Greek.
Sometimes slick is better than 'all powerful'.