Why is it an instance of microaggression?
a. In a bizarre reversal, equates feminism with other entrenched forms of social/cultural discrimination.
b. The aggressor denies gender-based violence and suffering historically inflicted upon women and other gender non-confirming people and often normalized by patriarchy.
c. It also serves to negate the role played by feminism in fight for equality.
What could be a good response?
Ask them to explain the statement.
If they do, chances are they will come up with complaints against ‘feminism promoting women’ more than men, or adversely affecting the interests of men in particular, isolated incidents.
Let them know that an instance or two does not make the norm.
Explain to them how feminism in fact tries to balance and correct inequalities against women.
Highlight on how feminism fights patriarchy, and not men. If anything, it can help men break free of the prisons of patriarchy too (how men should walk/talk/play/not cry/not be too expressive and so on).
In case they refuse to engage, move on. They probably got a cold feet.