But they would never. Not yet.
You know. The fascist wave of the 30s was all spearheaded by fascists, which had been involved in WW1 and colonial conflicts (China, Morocco, Ethiopia...).
There are two takes from that, one is that fascism only becomes the dominant ideology when capitalism is in extreme peril (WW1 had left many countries, even the neutral ones in a very weak situation, this compounded by the trouble controling the colonies of smaller powers like Spain and Portugal. Big tent radical left movements were poping all over western europe with different levels of success, and the USSR was quickly industrialising, capitalism really felt like it could be coming to an end.). That's not the case here. In fact most people think that the world will end before capitalism does.
The other one is that you need fascists much more used to violence to turn small incidents into a massacre. Nowadays the people with most blood on their hands all do it from safety and far away as if they were playing a videogame.
Just think of the premise of Qanon, with half of the people there at least being pilled as fuck. And yet they did nothing. The forces of reaction are strong and loud, but they are not ready for action yet.
Im not a social darwinist, but....