Thank you! There are also quite a few ways Batman clearly influenced Spider-Man, but in arguing about Superman, I didn't even want to bother. And, again, this does not diminish any of the characters! In the same way that, like, a lot of the core aspects of The Beatles are heavily influenced by putting a new spin on Buddy Holly and the Crickets doesn't make them lesser for it.
Don't be so offended. There's a certain cult of Spider-Man fans, some of whom have support from a few creators (and are likewise opposed by several other creators of considerable talent moreover), who are fixated and offended by the idea of characters changing or shifting from what they think, or rather what they select as "the version they were introduced". This group of people are offended by Mary Jane evolving and developing considerably from how she was introduced and most of them (not all of them mind you) are largely offended and or projecting some form of grudge or other at this. So you know you get inconsistency and so on. So some creator will attack Parallel Lives and say it departs from "how she was introduced" but on the same time make Dr. Octopus a hero based on backstory introduced in the 90s even if it's way bigger of a divergence from "how characters were introduced". The same group of fans will defend Corporate CEO Peter as in-character and so on.
So don't expect consistency or good faith from such discussions. And yeah, "Gamergate" is not far from how some of them see things.