One of the reasons I did not vote for Donald Trump in 2016 was the cult mentality surrounding him. It remains frustrating, but that frustration has also expanded to the small minority of anti-Trump Republicans. Liz Cheney has been one of the few to resist that trend. From National Review:
(Cheney) rightly refuses to play by the dumb rule insisted on by MAGA and Never-Trump Republicans from their respective parts of the spectrum, that the only two options are to submit to the president totally or to oppose him totally, with no honorable space in between.
It is bad for the Republican Party and bad for the country when Republican voters, pundits and elected officials process everything through the filter of personal loyalty to Donald Trump. No matter how loyal you have been in the past, and no matter how much you have supported and defended Trump and his agenda up until now, one act of dissent means you are a bad person.