Liberals are dictator?

I am wondering if it could be a kind of "Poisoning the well fallacy"  in which he is preemptively trying you to refute his argument.

I don't think this is an intelligible exchange.

(Note: I posted this yesterday, but my comment seems to have vanished!)

Interpreting upvotes as proof he is correct is an Appeal to Popularity

I am not sure I quite understand but I will do my best.

Liberals are dictators because they down vote comments they don't like.

This just doesn't follow. Down voting something that says something negative about a person or their group doesn't make that person a dictator or even dictatorial.

And when there's no downvote he said that what he say is right?

I don't quite understand this. Perhaps he is just asserting without evidence (not like a downvote would be evidence).