What an utterly thick as mince post and totally misogynistic post from someone who clearly knows absolutely nothing about feminism.
Feminism is about ensuring women experience equity and do not have to live their lives under the oppression of patriarchy. It is absolutely not the principle that women must do everything identically to men in a system totally rigged for the benefit of men. That is not equality. It is how we've ended up in a situation where women now take on the same roles as men in the workplace, because that is said to be equality, but still don't get paid the same and still take on the majority of housework and child rearing, because again, we get told well you wanted equality, which of course just doing everything is not. There is post after post after post on Mumsnet of women stuck with men who do not do their share.
Stating a woman must be able to fight off a man who is naturally larger and stronger than her is misogyny. It is akin to saying women must play sport with men otherwise that are not feminists.
Part of women experiencing equity would stem from understanding that women and men are physically different. Women's bodies are utterly amazing, however men are physically stronger and faster. If there was an intruder then that intruder would most likely be male, and in that instance then yes of course in the main it would be better for a man to fight with them.
And as for all the people saying that the OP is catastrophising, I know various people who have experienced home invasion. And you can bet your life that when it happened to my dearest friend, it was her stark naked contact lens less husband that charged downstairs to chase them away. Because as a 6 foot two gym goer, he was still clearly better suited that his eight stone, just over five foot wife.
Of course the use of language like 'absolute audacity' and 'toxic femininity ' makes think this poster is both very young and a male who wants to try to give women a kicking by telling them they're not feminists because they wouldn't want to fight off a much larger male. Which is utterly banal and ridiculous.
Also it's sex not gender.