I really don't know what you do wrong or not. I never had experiences of people insulting me ever. I think you exaggerate a little bit. I doubt people calling you idiot and words like this. If you ever had a single lunatic who thought FFXIV is LoL or smth then you can always report harassment and take a screenshot as a proof.
All I want to say is that if you want to do something and that something requires a full party from PF but you don't like the requirements or the job slots of the current recruiting groups in PF then start your own group with your own terms and rules. It's simple as that. Some people want to do the X content with the X way and rules. It's their right to do so. This is why we have PF. Want a training group? Make one. Want a Zurvan group with different rules? Make one. Want a bird farm group again make one.