To be blunt, these people are hopeless niggercattle, the right-wing equivalent to niggers and beaners entirely dependent on welfare. They're cleaner & have jobs perhaps, but their mental plantation binds them completely and they will never, ever waver in their loyalty to Israel, which is certainly greater than that of the supposedly most fanatical Ultra-Orthodox Jews (Haredim, who ironically are basically the niggers of Israel and really, REALLY don't want to die for that country; unlike these shabbos goyim who would gladly send their own children & grandchildren to shed blood for the Zionist state). Any serious challenge to the worldview instilled by the pastors on TV and in megachurches just gets them to mentally shut down & terminate the conversation in favor of repeating certain slogans or telling you that you don't understand the truth. I can't even really consider these zioboomers Christian anymore, they don't worship Christ really, but the Jews instead.
And if you think the modern GOP sucks, well, I won't dispute that but I will say that it used to be worse. These niggercattle were a very influential faction within the Republican coalition from the '80s until about 2012 (the Bush years crippled them and made them radioactive to virtually everyone under the age of 30 at the time, but their influence lingered for some time yet) and especially the Trump years. They had a total lock on Republican social & foreign policy especially back then, working closely with the neocons (warhawks, mostly Jews and/or 'former' Trotskyists) on the latter front, though in standard kike:goy exchange fashion, the neocons didn't return the favor when it came to pet Evangelical social issues like abortion & gay marriage (most infamously, Cheney had a lesbo daughter, while guys like Wolfowitz were pretty quiet on the culture war front even as they called for bombing everything in sight abroad).
The only hope is that they're dying off while the younger generations of Evangelicals, Christians in general really, think they're cringe retards and don't tend to have any great affection for Israel. Their malignant influence has been waning since 2008 and took some really hard hits in '12-'16, forcing the selection of Pence as Trump's running mate was one of the last moves they were able to pull off in a high-stakes national race. You can see some of the younger types pushing back on their braindead elders a bit in the same comment section.