If I or someone else try to execute my view that you should die by attacking you, I think you are justified in self-defense, don’t you?
I should be, yes, presuming I didnt try to kill them first.
I don’t think that contradicts the general principle of liberty.
When someone is charging at you with a knife shooting them in a facce would be a reasonable violation of liberty (choosing the lesser of two liberties to deny when both are mutually exclusive)
Likewise if a political movement decides that your kind should die or otherwise be oppressed.
Thats not the definition of fascism. A political movement that wants a particular group dead may be fascism it may not, depending on if it has the other elements of fascism. A movement can be fascist and not have any group they want dead, likewise a movement can want a group dead and not be fascist.
So you arent going to advance your point for arguing for a completely unrelated point.