And this.
Green Lantern is like a position in the military.There are always gonna be multiple green lanterns.
Also one of things about the first green lantern was that a human was never chosen.It was such a big deal.All that is now ruined.
Same with Spider-man.We don't need so many Spider-people specially not in the 616 present.
Miles is 1610 Spider-man, Gwen is earth-65 and Miguel is future Spider-man.That's enough.
Then we can have them meet up and people like Madame webb, Silk, Anyaand Spider-woman(take 1-2 out by killing them in a meaningful way) stay in the 616.
You're right.
The point, that others here don't seem to grapple with, is it already has. Readers and general public know Miles Morales as Spider-Man and they don't have problems separating him from Peter.
This attempt to make Miles not be Spider-Man is:
-- Being charitable, closing the barn door after the horse has bolted.
-- Being quite stern, acting like a reactionary and trying to reverse changes and progress.
No they aren't similar examples, those are C-listers who primarily live in teambooks, not like Peter at all who carried his own mass franchise for half a century.
And frankly Peter is above other heroes, there's no Marvel hero anywhere near as big as he is, even the X-Men is primarily a team franchise, where as Peter is one character and got to where he is without anyone else