Too many of these 3 in comp

There’s literally too many of you onetrick Genji/WM/Hanzo mains… literally. game starts and 90% of the time one of these will get insta picked, and we all know that they will NOT swap… but if they do, they sawp one of these 3…
And every time theres hanzo/wm, their accuarcy is about 20-30% and headshots less than 10%… and they then flex with their damage done… yes, huge dmg when spamming auto attack to a tank. Then there’s genji who just doing mario double jumps and pretending to be Naruto while doing literally nothing for the team.

Anyone have any idea why these players refuses to swap? or are even allowed to play? To my eyes, that’s just trolling/griefing…