@DorothyZbornakIsAQueen
I think things like this are more helpful to TRA's as it makes it look to the outside world, that people are completely taking the piss, rather than putting reasoned arguments forward as to why gender ideology is harmful.
I disagree.
Humour has a way of sticking, in a way that reasoned arguments just can't. It's why satire is so effective. Reasoned arguments can be batted off by the True Believers of The Faith, but jokes fly in under the radar and land where the reasoned arguments cannot reach.
And that particular joke on the t-shirt is actually pretty damned effective. I think people will automatically see that passing yourself off as vaccinated when you're not could be very harmful. It reinforces that 'I identify as' = 'I'm not'. And as for taking the piss, I'd say it points out just exactly who is taking the piss.
Jokes work.