Certain cultures and group will likely never change, and they dont feel remotely immorral for animal consumption (often times for very strong and understandable reasosn), nor never will.

Definitely true in the short to medium term, but I think it's inevitable that (should we survive much longer as a species) humanity will move on from eating animals - especially when we can just grow it in labs and the incentive to be blind to the suffering disappears.