Because this topic doesn't exist in a contextless vacuum. It's certainly possible that an internet commenter happened upon the same arguments, using the same language, as popular online anti-feminist movements use. But believing that unlikely coincidence is far beyond benefit of the doubt and we have no obligation to extend that far.

You yourself were enough aware of this context and dynamic that you carefully phrased your comment to avoid it. It's dog whistle shit, intentionally plausibly deniable neutral-seeming language. Corin called it out and you're saying "but plausibly, couldn't they deny this?" Yes! That's the point of it.