I have heard more complaints of "I am TIRED of Batman" than anything else.
A SMART owner doesn't say this stuff in public.This makes me curious as to which comic book store you've ever been in where such things have been uttered. Furthermore, how many stores exist where this has occurred at all?
Because guess what word gets around and don't let folks see you at a comic con with a booth. I would not do business with any store that bashes Marvel and I buy more INDY books than DC/Marvel.
I am willing to wager that the biggest complainers are the ones who don't sell that many POC, LGBT & Women lead books to begin with.
Lets just say my store does not have trouble selling my 50 solo books with straight white males-even a low seller like Slapstick does OK. No bothers with my 10 black lead solos (for whatever reason) and I don't order anymore.
Now reverse the roles. Guess who has an issue now?
Is that Marvel's fault? NO.
That is an issue for ME and ME alone.
If 90 out of 100 comic book stores have no issue with Miles Morales books-does Marvel pander to those 10? NO
It is up to ME to find other books to promote and SELL. Those 60 books do not make or break me when I stock over 500.