These animes have moments or are completely based on revenge or defense. The mcs or other characters have distinct moments where they are negatively impacted and instead of succumbing to negativity, or ending it in a fight scene, they get beaten and then seek to take revenge or defend what's being attacked.
The anime on this list are known to have vengeance arcs or be based on revenge and are in most of the MAL descriptions, therefore I do not believe the title of this stack spoils anything. In my descriptions, for a couple anime, I spoil when some of the unmentioned revenge arcs happen in the anime, but tried not to go too far into detail. If you believe I spoiled anything please let me know and I'll change it ASAP.