I think discrediting all anime because of the series that do that is excessive. Anime is just a medium to tell a story, not a genre. You could even use cartoon as a synonym. Do all cartoons make you feel the same?
That said, I agree with you that the sexualization in many series is uncomfortable and I don't like it either. And I admit that lately many series (especially those aimed at teenagers) resort to this to gain views. But it's sad when someone discredits the entire medium just because of the series that do that.