Not disagreeing with you, but they would eventually turn to violence inevitably. Either through "legal" means as reactionaries restructure the government under Trump and his supporters, or through continued terrorism in areas or periods where he isn't in power. It doesn't matter if he'd gotten assassinated or if there had never been an attempt. His fanatics are convinced they're in a holy war, and they look for any shared of evidence - real or imagined - to support that bias.
I'd wager you're more annoyed at the hypocrisy of liberals wanting Trump dead than them simply wanting him dead, because I can guarantee his fash followers are going to do violence and terror regardless of any attempt, its success, or its failure.
Exactly. They've been screeching about this decades before Trump, insisting the US is some Christian fascist paradise being besieged by an international cabal of communists. Every Trumpite politician I see yammers on about "the left" in every negative thing that happens. Trump didn't need to get shot at for them to start marching with torches at Charlottesville, or to start attacking city infrastructure to target minorities, or to push state governments and courts to adopt more and more aggressive reactionary legislation. Yes, this will be their rallying cry, their "proof", but with how much pressure reactionaries have been putting on citizens, it was only a matter of time until someone pushed back and gave them the excuse they wanted.