>The comment that I replied to:
Fair enough if you consider your comment a start of a new thread, but that is ignoring the context in which the comment you replied was made.
>specifically laws against antisemitic speech
As a Jewish person, I have a bridge that fights antisemitism to sell you if you genuinely believe this. Just the simple fact that they are only against antisemitism and not all hate speech should tell you there is no genuine conservative desire for hate speech laws. And your second example is just more evidence of that. Conservatives cynically abusing existing laws does not show a conservative value eventually becoming liberal or vice versa. You can argue it shows how these laws create problems, but it isn't evidence of any sort of switch in values.
This is similar to how many on the left don’t believe that “hate speech” restrictions should apply to speech against whites. This is the problem with laws that apply to the realm of speech and ideas; it is a very small step towards abuse that undermines equal treatment under the law, the free exchange of information, and the democratic process.
Both major US factions like to use selective enforcement and/or targeted taxation or regulation to attack their political rivals, while wrapping their actions in flowery language. This is a longstanding tradition here. If you don’t see it, I urge you to take a closer look and shed your bias.
Edit: I’ll add that this selective application is probably what creates the illusion of a change in values. In reality, it’s two tribes jockeying for power using whatever tools happen to be in front of them; naturally, the available tools shift over time. The ideological justification for a particular position or action is created after the fact.