The illusion of 15 million Jews vs 1.5 billion Muslims:
To answer this, I say:
Jews, having their Torah and prophets, were conquered by
Nebuchodonsor the idolater!!
And why was
Pharaoh set on the Israelite for some hundreds of years: to persecute them: killing their male babies and saving their female babies in addition to other kinds of persecution?
The answer:
God dislikes the idolaters and wrong-doers: those who wrong others and transgress on people, so that He misguides them and they become idolaters associating and worshiping others beside God Most Gracious.
So the Israelite in Egypt fell in the idolatry and they associated the idols of the ancient Egyptian who worshiped many idols like the ox or the calf, so He set on them an oppressor: Pharaoh who did more wrong than the wrong of the Israelite.
But certainly, not all the Israelite became idolaters; many of them like Aaron and his family and many others were righteous.
While many others like Korah were wrong-doers, transgressors and materialists.
And there was a promise from God to save the Israelite by the hand of Moses.
Later on the Israelite were obliged to follow Moses in the Exodus, then in spite of the miracles like the splitting of the sea and the drowning of Pharaoh and his host, the Israelite fell in the worship of the calf in the first opportunity when Moses went to the Mount to bring the Torah written on the Tablets.
Therefore,
God's plan is to set on the Transgressor, someone that is worse in his transgression and persecution .. then to destroy the latter persecutor later on.
I say
the situation of Muslims and Jews at present is similar to the situation of Jews and Nebuchodonosor in the past.
Now Jews have been strengthened and set on Muslims who [till now at least] could not resist them.
While Muslims have their Quran with them (but they do not commit themselves to its teachings), in spite of that Jews follow the falsehood and most of them are ungodly, atheists, homosexualists and non-religious.
The reason because
Muslims themselves have fallen in the idolatry of worshiping and glorifying the tombs of the imams and sheikhs, in addition to their transgression on each other.
And
God promised that the Islam religion will prevail over all other religions in the future.
A Warning to Jews of Perishing, If they do not believe in the Quran