David Futrelle has a blog dedicated to complaining about the MRA. In this particular post, he claims that MRA's have been misquoting Andrea Dworkin:

Then there's this alleged quote from Andrea Dworkin:

'Heterosexual intercourse is the pure, formalized expression of contempt for women’s bodies.'

According to Wikiquote, this quote is quite literally fictional:

Wikiquote is right; Dworkin never used those exact words. However, if we look at her 1987 book "Intercourse" you'll find a shockingly similar quote:

Intercourse is the pure, sterile, formal expression of men's contempt for women

A couple words are changed, but it's basically the same idea. Some people will say the quote is out of context, but you can read the whole book online and decide for yourself.

I don't know about the other "debunked" quotes, but this one is clearly not "fiction".