No. Fascism comes from feeling your privilege threatened.

What about someone beguiled into supporting far-right Islamism?

I actually had a discussion about this recently and it's different, in my opinion. The people who are radicalized often live in the periphery, they are often isolated from the general population by being (non-formally) segregated into specific poor areas. It's easier to be radicalized when you can't see a future and someone else can offer you a "real" goal and future.

My point of view is skewed to sweden though, where we have "utanförskap", areas that are isolated and segregated. Their schools and public services are often underfunded, the areas are often poor and cops harass people for no reason. A few years ago there was a wave of uprisings in these areas known as "husby upploppen" which was caused by a cop shooting an older man for no reason. So there is already an anger existing due to systematic oppression.

The problem is that these people hate the established left from what I've read. Not because they are anti-communist but because socialist, especially trots, try to take the lead and tell them what to do and want instead of listening and actually caring about the people they are trying to organize. So it just comes of as shallow fetization of a group of people.

Of course we should relativise the awfulness of "far-right islamism" but it develops differently from fascism.