I quoted the part I was responding to. The other part seems not true to me. Trump was extremely overblown by media and many believed it. He stepped down... that's not what dictators do, and it was Trump that as LARPing as a dictator just to get reactions. The evidence is that he was an entertainer and had a TV show. How many dictators in history had TV shows? He played the media, and then everyone went insane. Sure, he's an idiot, but thinking he's a dictator? That is also LARPing.
As far as guns, unlike your suggestion of right-wing authoritarian citizens enforcing government, there are many instances in history like Cuba, where the first thing a dictator does is take away civilian guns.
The point of the 2nd amendment, is for anyone and everyone to own guns. We can see this post and also last year during the riots (BLM, left-wing rallies arming themselves) that everyone goes against gun control once they realize they need to defend themselves.