A totally different option is to treat Jane as what she is, a poor woman who has turned herself into the caricature of a feminist, and get her out of this. 

Next time she starts The Speech, tell her straight away that you have heard this before, and ask her whether that is all she is. Offer her a beer (that will probably the first time this happened to her in years). If she doesn't like it, ask her what she likes. Insist on an answer. Do not accept any feminist talk, interrupt it immediately, and get to a different subject. 

Why this approach? There are two possible outcomes. One, you may be able to actually help her. A woman with that kind of attitude isn't going to have many friends, so any help that actually gets her out of this attitude, and showing her that there is more to life than hating men, is a very good deed. Two, you may have no effect. In that case, you still stopped The Speech. Instead of being annoyed by it, you can get some pleasure out of stopping her. 

In the end, this isn't about feminism whatsoever. It's about someone visiting your home and behaving in a most obnoxious manner, either intentionally or without even realising. While it is easy for you to protect yourself from being annoyed by that behaviour, anything that makes her behaviour more acceptable in general society is only good for her. Would be the same if your neighbour came in and talked football, football, football and nothing else, and lost all contact with any non-football-fanatics because he can't talk about anything else.