I forgot the conclusion:
So...Conservatives tend to be Christian and my Jewish friends and associates are very wary of Christians ( for good reasons, in my opinion.) It for this reason they tend to gravitate to those who are secular. Secular people are more likely to be liberals.
Some of what you say has a bit of truth to it, such as not being able to join certain clubs, tho I would never want to join one which didn’t want me.
Some of the other stuff such as not celebrating Jewish holidays is nonsense. I am sure Israel does not celebrate Christian ones.
There is also another side. I used to work with a U.S. Treasury agent. He was a fine man and extremely intelligent. He once told me the best neighbor he ever had was in Atlanta and the guy was Jewish.
He got a promotion and moved to New York. He bought a house in a neighborhood which was mostly Jewish. He said they were the rudest people in the world. Also made it plain they did not care for him because he was Christian.
In other words they mistreated non Jews much worse than Christians do non Christians.