That is a false equivalence. For the last 9 years at minimum, the right has spewed virulent racist filth. They have proven that they are garbage by their behavior and actions, How many times has trump said racist bullshit. Not you but people have applauded all this claiming to be practicing freedom of speech and claiming to be tired of political correctnress. Yet when people decide to use that same poitical incorrectness on them, we get what we are seeing now.
On Sunday night there were 20,000 people cheering not only the garbage comment but vile comments from other speakers and Trump himself. Trump has forever denigrated those who vote for his opposition, so this complaining about those who support him doing that is just rank hypocrisy.