Your characterization of positions of people who sometimes vote Republican is just ridiculous.
Let’s take the issue you keep harping about which is granted, a VERY BIG DEAL. The insurrection of January 6 was a nightmare situation. Please know that The Republican Party did not plan it or execute it. The reaction by some Republicans to this debacle is disappointing to be sure. But idiots who carried it out are being prosecuted. I think Donald Trump had much to do with it to inspire it if not make it happen. The country needs to kick Donald Trump to the curb and move on.
I think you’re right that Republicans actually are in trouble as far as winning elections but probably not from the things you think they’re in trouble for.