Dude, what on earth. People can be so stupid when it comes to separating fantasy from reality. And it sounds like the reader should just completely stay away from the Omegaverse tag if they don't like reading anything that could be seen as misogynistic. And the dubcon and 'lack of consent' tags are right there.

They're probably someone who has just stumbled across ABO for the first time ever but I hate it when people feel the need to complain about the subject of a story when it's clearly labelled. It's even worse how they imply you have the same beliefs as the ABO society.

I don't think you're being too harsh. I would just slap them with a 'Depiction =/= endorsement' reply as well.