They think he won in 2020 and it was stolen by Biden, liberals, the media, election officials, and the courts. They think that January 6th was not an attempt at a coup and was instead a response to the aforementioned stolen election, therefore patriotically-justified. The 7 or 8 dozen felony charges against him in the last 3 years are a media/political/court-induced attempt to keep him out of office again like they did in 2020.
This is about owning the liberals that they think have stolen the country from them. The ends justify the means in their eyes, no matter what Trump's policies are.