It is a 60000 people festival where OP came with friends he knows for years (by own words).

It says something about OP and his friends, but it is unclear who was actually in the wrong. We have no idea whether the "other" people were in the wrong or someone actually crossed lines and "others" reacted reasonably. Because people who, for example, abuse or mistreat others see themselves as victims when it is not enabled.

But, what is sure is that if your friends turn on you during short crowded festival, the issue is in your group dynamic. And way OP uses language suggest the kind of personality that will blame strategically rather then fairly