Maybe you could write a guide that details appropriate behaviour, like a website or something, It could give a set of clear guidelines for what to say and how to think, that you have personally deemed to be worthy of inclusion on the site. Can't see it catching on myself, but maybe it would help alleviate your neurosis. I'm being glib, and It's upsetting when many people hold a different viewpoint to your own, but it's also kinda the point of a forum right?
Onto Rashford, I think what's happened is the media have picked up on things that fans have been noticing for a long time.I don't really see how it's bullying as seems to be valid criticism, and I think painting it as such isn't going to go down very well. That being said, I personally think Rashford has been a lot better this season, but it can take time for perceptions to shift. He's a great player on his day, but unfortunately, he has the status, both in wage and PR, of being a player who is mostly great every day, like Salah, Haaland or De Bruyne. Until he consistently matches the impact and output of these players, which I think we can all agree that he consistently has not, there will always be disquiet and people who think the status he has is unwarranted and detrimental to the future success of the club. There is a lot of evidential support for this sentiment, so I think just being as insulting as you can get away with, under the rules of the forum, is unlikely to change many opinions.