Yes or it could have the opposite effect. What I think is that a lot of people feel hated upon from the rest of the society.
In my country there is a political party that has been excluded from a lot of public things, other politicians telling them they are fascists, racists and just any kind of slur basically. They were even excluded from a party where Saudi Arabia was invited. Just think about that.
Now, they are the second largest party in the country and well on their way of being the largest. They had everything to gain being the underdogs and their opponents has been their best ad for gaining trust and votes.
Fascists are excluded from public discourse in many societies, and I'm not positive it makes the situation worse in any respect. People still supporting them no matter what are typically like-minded bigots rather than some sort of libertarians sticking up to authority.
In my country there is a political party that has been excluded from a lot of public things, other politicians telling them they are fascists, racists and just any kind of slur basically. They were even excluded from a party where Saudi Arabia was invited. Just think about that.
Now, they are the second largest party in the country and well on their way of being the largest. They had everything to gain being the underdogs and their opponents has been their best ad for gaining trust and votes.