I also didn’t adequately explain that I feel ‘modern’ Christianity has very little to do with the teachings of Christ, much less the content of the Bible even as a whole. It seems it’s much more a justification of their targeted hatred.

Definitely agree there. I think the union of conservative politics and christianity has made both worse.

It’s that bigotry and hatred that is the core of christian nationalism and nationalism in general. Having a target to hate is just how these fascist operate. Religion helps to have outgroups to hate, and nationalism exploits that to try and radicalize.