Walter reminds me of Selfsame. If you do not agree with him, he labels you either stupid or a Liberal (non-believer). You can have fun without insulting people, and spite is only needed occasionally.
I would put him on ignore, CC.
WRT Morley Safer, I have met him three times.He was humbled that he was sometimes chosen to do stories because he was Canadian. He offered a different perspective. That perspective has gotten him in trouble over the years, but I seriously doubt that it bothered him. That was more in the 1960s and 1970s when Vietnam was still going on though.