This.

Also, it's probably worth noting that many feminists do want to discuss the way sexism impacts men, but find that self-invited men who wish to participate aren't necessarily contributing in a positive way to that. Continuing your analogy, it would be like people who want to talk about UFAI found themselves fielding responses from people who think merely discussing AI makes you shills for the DOD who secretly work on drones and like bombing brown babies.