I don't think that's the case, I think over the past several years a series of media figures have promoted right wing explanations of the world, almost all of which have relied on finding the most extreme examples of the worst people on the left, taking them out of context, and distributing them en mass in an organized fashion.

This process started with the "Russian troll farm" influence story in 2014, and was a huge part of the popularising of the alt-right. People like Steve Bannon, Peter Thiel, and Elon Musk also started running influence campaigns.

So we have these vestigial bad ideas and examples the vitriol of the left, like "big red", or this artist, or the screeching leftist, or this person.

These are then (as with that last example) combined with rightwing messages, or explanations about the left, citing the worst of them, to make memes and political propaganda.

Along with this comes things like horse shoe theory, the fourth turning theory (weak men create bad times ect), and things like "Post-modern Cultural Marxism caused all the problems".

This sort of popularization of bad ideas and misdirected grievances doesn't have to go on very long before society is left with a bunch of bad ideas, like feminism is hate speech against men (not saying this is your particular claim), or that poverty is caused by recent immigration rather than long term regulatory choices.

Long story short, due to the left having more reasonable explanations and models, in context and statistically there's far worse going on in the extreme "horse shoe" ends of the right, than in the left.

I guarantee you can find kidnap plans and migrant bashings by right wingers far more quickly and abundantly than you could anything like that on the left. It's drastically one sided.

Left wing rage is probably stronger, but it also tends to be better placed and more accurate.