On Florida, the current law falls short of the amendment at the last election which 57% of Floridians voted in favor of. It required 60% to be passed, but obviously the current law does not reflect the expressed desire of the majority of the electorate.
In 2020, Arizona, Georgia, Michigan, Pennsylvania, and Wisconsin, Republican lawmakers explored ways to override presidential election results by appointing electors contrary to the popular vote. Is that not extreme?
Look at it this way, Bush was elected based on a compassionate conservative platform, none of which would sit with the GOP today. It went from that to Tea Party (Don't thread on me), which came out of Obama (remember the whole birth cert thing) and the ACA (signature issue) - which drove a definitely more combative and anti-government approach. That's all in the last 15 years or so.
The Freedom Caucus in the House is the "extreme" right-wing element, no? It was founded in 2015 with 9 members; it now has 45, so 5X as many in 10 years.
So I do find it very odd when anyone says one side has shifted but the other hasn't (really). They both have, and neither has done so "slightly".