I would be cheesed off. I understand the continuum view that little things like this are part of the whole and that if you tackle the little things it all helps.
The other view is concentrate on the big stuff, the Ched Evans, the "she was asking for it" the " prostitution is just another job" nonsense" because going on about this sort of stuff makes you sound like , as someone on the ballet said, a loon. And sounding like a loon never helps.
There is another thread at the moment about a stupid , naff sign on a pub toilet. The stupid, naff sign merited a mention; it should not, as a poster on that thread suggested it did, lead anyone to think it damaged their sense of self worth or question their value in society.
IMHO that sort of OTT reaction to a stupid pub sign is pretty near the end of the loon scale. This complaint is not. It is an ignorant and poor show from a body which should know better.