One of the annoying things is that it isn’t even quite true to say they preach “conservative,” political action. There’s a particular political philosophy of the “religious right,” which is really it’s own flavor of thing and doesn’t fit the classical definitions of liberal vs conservative that we would have used in say, 1980.
That’s a lot of what’s turning over the Republican Party right now. Old-fashioned “conservatives” like Mitt Romney and Liz Cheney are being uprooted in favor of... whatever you call the hodgepodge of today’s Republican ideas.
They're all anti-maskers, too. She had to stop by once to deliver something during service, and everyone's packed in there singing and shouting, zero masks to be found. Pretty scary.
The entire story of Christ is based on redemption from sin - if one tries to eliminate that because having extrajudicial demands on one's conduct is not fashionable in the modern day, what's left is, objectively speaking, not Christianity anymore, not even qualifying as a moral framework, and leaves you with nothing more than a nice story about a nice guy.
Let us not forget that Jesus was described as fashioning a whip (which is not something you do on a momentary whim in the bronze age, that takes time and effort, and in this case, likely stewing the whole time) and deploying it against scalpers in the temple. What the "judge not" passage calls for is recognizing that you aren't the ultimate authority worthy of meting out punishment at the end of the day (which also jibes with significant portions of the Israeli covenant and its lethal punishments being deprecated), but it does not demand that people remain tolerant or silent in the face of sin.
Your typical fundamentalist might be nominally Christian by declaration, but they give short shrift to so many things they deem not important that it amounts to shallow virtue signaling. The moral guidelines are all-or-nothing. You either accept it all or you might as well save yourself the time because there's no such thing as partial credit. Sin is sin.
As for actual Christianity and those who study it, in many ways the teachings of Christ could not be more different than the “religious right” advocates today. Christ taught followers to love their neighbors as themselves, and not to judge other people, because in God’s eyes all humans were equally and impossibly flawed. When a mob formed to stone an “adulteress,” as was the prescribed punishment for that “crime” in ancient Judaea, Jesus said “let the person who is without sin throw the first stone.” The mob dissolved, and he told the woman she was forgiven.
Note that this is not what the religious-political faction of Jesus day wanted either, and in the end they arranged for him to be crucified as a result.