1. B-b-b-bidenNnNnN1!
2. Keep going with what you started with..... let's say you're a Liz Cheney, a Mitt Romney, Paul Ryan, John McCain, etc... As far as I know they all want lower taxes and less regulation.....and I'm pretty sure all or most are life long republicans if not at the very least have been republicans for longer than trump has. In any case, by your definition, they're all "perfectly normal republicans".
Not sure about you personally but many, many people would disagree that ^they are Republicans though.
Who are the people who disagree that they are Republicans...? Trump supporters.
(Aka "retrumplicans", "trumpublicans", the "party of trump"). That is who the OP was talking about. You have to make up a name for them because a name doesn't exist.