First of all, that sounds harsh coming from a friend. Its OK to be critical, but insulting an idea like that is pretty rude and not constructive at least from what you’ve put here. You should reevaluate your friendship with this friend if that is an accurate portrayal of how they said this.

Second, your story sounds like a normal super hero story which isnt a bad thing. Theres this weird idea that you need to come up with super original concepts to be successful in art but that’s not really true. If you do something that someone’s done before, but different enough, and do it well, people will probably like it.

So yea, write your story man, not because you think people will or won’t read it, but because you want to do it.