But when the discussion is generalising on men as a whole, instead of some men, then it is talking about all of them.
The discussion is what women would do differently if men had a 9pm curfew. It is nothing to do with men. The world is, at that point, women only. And the result is, of course, that we see many many woman answer that yes, they would be in the pub, having a jog, walking home from the library instead of getting a taxi.
The premise doesn't assume anything at all about all men. It does assume that women alter their behaviour in order to avoid some men. That's pretty telling.
If you flip it around, and ask men what they would do if women had a curfew from 9pm i can guess that some, if they were honest, say "go down the pub with my mates and smell each others farts/play darts/watch sport". And some would say - stay at home with my OH because it's boring without her.
And some might rub their hands with glee because they can knock 7 kinds of shit out of her and nobody will be any the wiser. But of course they don't need a curfew for that because lots of women impose a curfew on themselves/perpetrators of DV don't need any excuses.