Most Protestant churches seem to be going that way.
I am not sure of the numbers of these liberal churches but I can speak to my Presbyterian Church of America (PCA) church and bible-believing churches in my area. My church has sustained a 10-20% annual growth rate over the last ten dollars. In my area bible-believing protestant churches are doing quite well. So I would not paint such a broad brush.
Evangelical churches support Israel.
SOME, perhaps, and a number of so-called “mainline” churches, such as methodists, UCC, and so forth, have definitely slipped away from their first love, who is the Christ.
On the other hand, chuches who preach the unmitigated GOSPEL are growing at an amazing rate. My Baptist church has to set up seats in the back virtually every week for new folks. We preach nothing but the Gospel and we now run 6-7 buses going to various local cities, bringing in kids and families. God is richly blessing us
So kindly refrain from trying to tar ALL Protestant Churches with the same satanic brush. It hasn’t worked before and won’t now.