Pretty sure the fall of Rome was Trump's fault to huh?
I know you are speaking figuratively, so I'm gonna go with "yeah, pretty much."
So, first a tragedy happens (the killing of George Floyd). The president had a few options as to what to do:
1. He could have stayed out of it, and drawn considerable fire from the left. This wouldn't have gone over too well. He's been silent on too many of them.
2. He could have read a scripted statement of support for George Floyd, vowed to support the community and it's leaders, call for further review of law enforcement procedures, and made frankly the usual political noises that presidents do when there's something like this. This would have helped.
3. Instead, he waded into the fray like a mad cow bull in a china shop, decried the city, it's mayor, threatened to invoke the national guard, and then used the "dog whistle" of calling people thugs and inciting violence "when the looting starts the shooting starts." His use of that word in that context normalized a very incendiary word at exactly the wrong time. He threw gas on the fire. Or, fiddled while Minneapolis burned, or whatever the analogy dictates.
So now, all sorts of people are using the word thug all over the place and it's not ok. I got an accidental text yesterday, from someone down in the southern outskirts of the Indianapolis metro area, talking about how "the thugs said on social media they are taking it to da white neighboahuds" (exact quote from this text) and how he was getting ready to kill them if they came through his door. Actually, I support shooting marauders who come through your door, so that's no-foul from my view, but calling the "lumpen group of mostly protesters, some rioters, and a few looters" thugs is not ok.
Doesn't matter what I think, or what you think. The reality is that Trump never polled well with black people but their motivation to get out and vote was uncertain. This has galvanized the black community against him from a motivational perspective and I think ends any chance he might have had for re-election.