I predict this to be the end of an era not the return. The wounded snake is rearing it’s head one last time before finally being lopped off. This is all done in desperation.
Trump is only 'allowed' to exist because he satisfies a particular urge of a quarter of the country. If you truly want to kill fascism you have to actually provide quality public education, financial relief, etc. to all these skinheads for generations to come. This is something republicans will never do, and something democrats only want to do in principle but have a hard time pulling the trigger.
Besides, it's not like those rioters were killed. All this showed them was that storming the capitol is incredibly easy. Fascism is nowhere near gone. In fact it seems to be rising worldwide, and for reasons I noted above.
Oh, another thing. With climate change underway we can expect to see millions of climate refugees. That is going to make fascism even worse, for obvious reasons. Trump ran on the principle of keeping out Mexicans. That was just one country. You're in for some serious trouble if you don't help the global south and the middle east.