I think there's a lot of difference between a rip off and something that draws inspiration from something as no one man can own a concept of something. If that were the case then everything in the world is basically just a rip off of something Superman included
I couldn't agree more. Having similar powers doesn't make character a rip-off.
If that was a case then Superman is Hugo Danner rip-off, Batman is Zorro rip-off, X-Men are Doom Patrol rip-offs, Cyclops is Comet rip-off, etc.