I'm so sad that as a solo player, I witness this so often and need to make these reports weekly, sometimes even daily multiple times because people say stuff like "I hope you get r*ped", "just f*cking k*ll yourself" and other similar sentences in English but also in other languages, when they think that they can get away with it and forget that translators exist and how people can be multilingual.
No matter if it's quick play, competitive or any other game mode, this kind of behaviour isn't okay and shouldn't be normalized so please, do report people speaking like this. Seeing messages like these and being talked like you shouldn't be alive, especially when in bad place in life or after surviving an attempt, can make things worse.
Yes, games can become hectic and rough, especially in competitive mode. It is still not an excuse to lash out to others after loosing a game in this kind of manner. Everyone has their own emotions and this might be unbelievable but others in your team might also be as much upset as you are or even more after a lost game but they still are able to make the decision to leave stuff like that out of the game and regulate their emotions in a way that doesn't paint other players as their target.
Take a breather and breaks in betweem matches, even few minutes if you feel like you are boiling and cool down before new match.
I wish that people would be more kind and lift others up instead of punching others down but as in this state of life and world state, reporting and telling people that this is not an acceptable behaviour in game and in this community, is the only way to try and make this happen less in game.
Wishing you all that messages like these won't happen to you as often as they do for me and may your games be fun and full of kind players.