Third-wave feminists' deliberate use of the word "patriarchy" to describe modern western culture is itself a class-conflict power grab.

But to directly address your point, the OP's argument isn't a strawman. I could compile a list of fifty feminist articles, blog posts, and comics espousing minor variations of:

- "Men can be oppressed, but not for their maleness"

- "Misandry isn't real"

- "Anything that systemically hurts men is simply their privilege backfiring"

But someone will still say that those examples don't represent true feminism.