A lot of them think support for Israel leads to the apocalypse and Jesus’s return. It doesn’t end well for the Jews in that story.
Trump had to cater to them in his first term but, since he's taken over the party, they're in the backseat.
Evangelicals, as a group, no longer have a cohesive political goal. They don't have influence because the collective isn't asking for anything.
Their influence was all based on being a large group of single issue voters you could get on your side with little effort.