Is there even a single feminist in this sub? Even on entire reddit that are a complete minority.

The largest subs (Not many Europeans there admittedly) are full of them, adviceanimals/news/politics. The only larger board I could think of that is not would be Technology.

Radical-Feminists aren't much of an issue in Europe or even in the Americas, but when they appear in placed like Canada (Dalhouse controversy) or the U.S (Several, I'm sure you've heard of them, Berkeley being the most recent) where they censor and try to get people expelled or removed from universities for very petty reasons they make themselves very noticable and very unlikeable.

The reason the mainstream has begun making fun of them is because they are very easy to make fun of, sort of like those fundamentalist christian groups that claimed DnD would cause satantic possession you have some of these people claiming that rape jokes on private facebook groups/from comedians leads to actual rape or that the presence of prostitutes in Grand Theft Auto if not cut from the game will see society revert into the pre-first wave feminism in terms of womens rights..