Hehe, funny you mention it. I've actually spent quite a bit of time looking into this.
MGTOW is most definitely the "radical" response to "radical" feminism. They don't dislike women, let alone hate women, but they really DO hate third wave feminists. So much so that to spite feminists, they take absolutely no risks and try to severely limit their interactions with women, except for those they're sure don't align themselves with feminism. The line of thinking is, "They want to be men? Let 'em be men." Meanwhile, they try to find women who are more feminine to involve themselves with.
The result, however, is that they really kind of end up looking like "masculinists." Just like modern feminism is highly unpopular among those who aren't involved, so is MGTOW. But, radicals just illicit more radicals...
It's kind of funny, really. Each side has genuine concerns that they want addressed, but instead of working at them, they just become impossibly angry at each other. All they really accomplish is alienating everyone.
Strange. This sounds oddly familiar...