This is easy.
To destroy the Republican’s voters support, the democrats have done two things:
1. Attacked evangelicals who support Israel
2. Running fake Christian’s who can say how immoral Trump’s agenda is.
Many actual Christian’s took the bait on the first
I don’t understand whatever point it is you’re making.
How would Democrats attacking pro-Israel evangelicals have any effect, much less one that “destroys the Republican’s voters support”?