I hope we never hear Loki say that he deserved all the abuse done to him although, he did deserve consequences for murdering folks as anyone would even though he was under Thanos’ influence. Loki does NOT deserve abuse. It would be like an abused woman who gets battered by her abusive husband that confesses, "It's my fault..I MADE him beat me..I deserved it!" It's always the furthest from the truth, but here's the kicker...it comes from a place of trauma and self-hate. Loki’s there.