@doudouye321
In many situations that you describe here, the solo guy who you complain about could easily write a similar post, something like:
" I spam "enemy here" on an enemy team that is just outside the ring and just about to collapse on us from behind, which we must contest so that we dont get squashed between two teams when the circle closes. I crack two of them and go for an easy close range squad wipe but to my surprise, my teammate runs the other direction and uses my death to get away and then hides like a rat. Why I have to play with these guy to get top5?"
Who is wrong? Impossible to say, especially without at least viewing a clip of the situation. And even then, many situation has no wrong and no right actions. Its all about misunderstandings between random players. Thats why you either have to find premades so you can work on your teamplay OR just take solo Q for what it is.