Responded to your previous post, but sorry to hear that the unfortunate would happen. Honestly, I don't find it surprising that people just ignore requests or just make rude remarks towards players who only want to play the game how it's played. Not trying to sound insensitive about what happened to you, but just ignore it and continue looking. Some people just don't have the patience to deal with helping others or probably just having their bad day who knows. Don't put your time to report an incident (It's up to you if want to) . As I said before, just move on (sounds cliché, and probably not so helpful, but that's my best advice). You could solo run story mode rosso just for rewards and a slow increase in drop rate for weapon I believe, but other than that don't give up looking for a party. It takes a long time to find a comfortable party.
I will apologize if some of my remarks/words are too straightforward or not as comforting/helpful, if anything feel free to talk to me, could rant some stuff out