It’s a bit like saying the abolitionists and slave owners were equally destructive and bad because the slave owners were intolerant of black people while the abolitionists were intolerant of pro-slavery advocates.
There are some overzealous or radical elements on the left, but not at all in the same way as on the right. Not in scale, not in effect.
If you want to say far left ideology is as harmful as far right ideology, fine. But when one problem is 100x larger, let’s not try to give both problems equal attention.