Are people suspicious of ENFPs?

I don't know many ENFPs and only one that I've known a few years and I've got fairly close to (platonically, not romantically) this last year.

I feel like he's a more enthusiastic, more affectionate, bouncy version of myself. I don't need to think about where he's coming from. I guess he feels the same since he's the first person to drop a comment that stopped me in my tracks, with the realisation of 'Wow, he knows my underlying motives! Cool! Also, how annoying!' :laughing:

Anyway, I know I'm often misunderstood, but he seems to be misunderstood to a greater extent than I am. People are really suspicious of his motives and intentions. His reputation is that he's immoral and can't be trusted. I've fell out with half my family defending him because they've heard rumours about him and refuse to put them aside until they find out for themself. No matter how much he proves himself, people seem to play down his good deeds, yet jump on every single fk up he makes (he does fk up a lot, but his heart's in the right place) as proof that they were right all along.
One family member even said he's "too nice"! Wtf? Like it's a mask hiding his evil intentions. Yet, when he refuses to kiss ass and tells them some home truths, they hate him even more for that.

I'm very accurate with my judgements of people anyway and I'm totally convinced he's a genuine decent person. Often when he makes mistakes it seems to be because he's trying to please too many people.

Does this happen to ENFPs often?

If so, are people suspicious of your motives just because they can't imagine being kind without gaining something from it?

Or are there other reasons for this?