Let me break down Your.gg stats for you.

Bad team luck -> Trash who beats up the carries Support/Jungle kill participation below 50% -> Braindead fuck who can't keep up with the game pace Laning phase score 5 or below -> Trash who plays a shitty useless champ or picks after the enemy and self-counter gets wrecked, or a trash who's just dogshit at laning and ruins the game Deaths 8+ -> Vending machine that feeds every time they int, except support and top Kda -> means absolutely jack shit Contribution score -> Under 0.85 means you're in the wrong elo for your skill. Above 1.3 means you're a booster or smurf

Roughly based on 50 games sample

You're right if you disagree.