Most people recognize that the freedom of speech is not absolute. Leftists arguing for hate speech laws are generally doing so from a reasoned position that hate speech falls within the "not absolute" area. You may disagree with them, but that doesn't mean that they are hypocrites.

On the other hand, there's not an apparent principled reason why the government's actions here wouldn't fall under the arguments made by the 2A advocates that the parent is referring to. Therefore, it appears to be hypocracy.

That being said, I run in fairly left wing crowds and the idea of passing hate speech laws almost never comes up. I'm sure that there are people who would support that, but there simply isn't any meaningful movement to actually try to make it happen.