I generally dislike writing off people (or groups or things) based on a soundbite or a hashtag - I'd much rather evaluate for myself whether there's any decent and informative point to the content.
#mgtow though... The very presence of it makes one cringe, and I can't think of an occasion when it hasn't descended into a dumpster fire from there.
I suppose it's nice of them to flag their own content so well really.