3 afks in the last 5 games and this isn't even the first time

how is this even possible? And why the fuck do I still lose the same lp as if it was a fair game? Explain this bullshit to me riot, and how the tribunal will definitely take care of them so they never do it again. This is the type of sh*t that makes me tilt and i can take it a few times but when it costs me many games in a row and i lose a lot of lp that's when i get mad.