To be fair - that is probably not appropriate in the context of talking about the Avengers.
I would expect the same response if someone said "Jesus saves" when talking about the Avengers - despite the fact that Steve Rogers is likely Christian. If the discussion was "Is Kamala Khan a practicing Muslim" then that statement with a preface of being proof would be fine - but just throwing that statement out without any context would like not be appropriate for the discussion.
To be fair - that is probably not appropriate in the context of talking about the Avengers.
I would expect the same response if someone said "Jesus saves" when talking about the Avengers - despite the fact that Steve Rogers is likely Christian. If the discussion was "Is Kamala Khan a practicing Muslim" then that statement with a preface of being proof would be fine - but just throwing that statement out without any context would like not be appropriate for the discussion.
Again the context of your statement matters.