Okay, @EnidSpyton - taking you at your word that you genuinely weren't intending to be rude, I will give it another go.
To clarify, I think this (vaccine mandates) is an issue where there are multiple valid viewpoints. While I support the concept of a vaccine mandate, I don't think it's inherently wrong to (1) be philosophically opposed; or (2) have such a different opinion on how, why or when such a mandate should be used that, in effect, there is no conformity of view with my own.
Not liking something, or being opposed to it, does not make it fascism. There are many things I do not like - things I think are very wrong - which are happening in the UK, but while, yes, I can call them fascism if I want to, it doesn't particularly mean anything if I do. Fascism refers to facists. There needs to be more of a reason to borrow a term than 'I don't like this thing'. Is it 'fascist' to eat meat because a lot of historical fascists ate it? I'm a vegan and I don't like people eating meat, but I acknowledge that I have no right to restrict others' choices in this matter. I have seen numerous other vegans describe eating animal products as fascism (criticising something I also dislike and disagree with), but I do not support borrowing the term in that context either.
I would actually have fallen under the aegis of Aktion T4 - in addition to being the close descendent of somebody targeted by the Nazis on racial and intellectual grounds. I cannot go into detail for obvious personal reasons.
I know it can be very tempting to wield the strong weapon of 'fascist!' in an online argument, but you can just, you know, try another word. I don't believe you are, in this case, even trying to cause any personal harm or offence, but this is always the risk when you throw it around lightly.