Going to raise my head above the line again, and mirror what an earlier poster said: I think going topless was a mistake. Ofc you’re getting media attention - you were topless. They like that, as do their target audience. Just because a few guys in the session you attended complained doesn’t mean the wider world gives a monkeys.
Ultimately, I think the importance of the point behind all of this will be drowned out because media attention: boobs.
I really get the desire to DO something and to take action, but I think it’s vital to consider the wider picture and what message it brings to the issue generally, as a whole. What will people remember from this, ultimately? That women were taking a stand against gender ID or that some woman got her tits out in a pool?