Honestly I was a Trump guy, and up until the last election was rooting hard for him.
It was the fact that around 3-4 weeks after the election, when it was clear that President Biden had won legitimately, and DJT was stoking the fires of election tampering that soured heavily on him. Then the whole Jan 6th Capital storming by folks that he had fanned the flames on, that it was just sickening.
Then some heavily republican leaning folks I know started talking about issues that had occurred with intelligence leaks that where linked to President Trump that I landed in the Never Again Trump side.