system
Given the following post, respond as if you're commenting on Reddit:
human
[General]Are all of the poor commonfolk the Villain killed proof they were not good enough, real friends to invoke the power of friendship? How come the antagonist is never smart enough to recognize the mystical power of friendship and exploit it to conquer the world?

As to the power of your love, something which can overcome any obstacle and defeat any foe.  Is the fact that the kindly old couple who was married for eighty years unable to stop throwing evil soldiers from burning down their home and butchering them proof they they never REALLY loved each other, or at least that they did not love each other enough?  After all, if they did, shouldn't they be able to summon mystical love powers to protect each other?
gpt
The "power of love" or "berserk button" that manifests when someone gains power to save a friend/avenge a friend's death is usually just unlocking some latent power they already had but couldn't or wouldn't access. It's not going to turn a regular person into a super human. Maybe the 80 year old couple swung their canes at the evil soldiers slightly harder, but that's still not enough to make a difference.