It's a lazy joke, tired and unfunny. I think it's probably more aimed at the fashion industry than everyday trans people but the whole thing doesn't help. To be honest, it's the kind of thing I'd usually just roll my eyes at.
However, I don't think these petitions that keep getting launched in the name of the trans community are doing any good at all. Recently here in the UK, there was a petition launched to try to get Cardiff university to cancel a planned talk by Germaine Greer, on the basis that she holds transphobic views. If the petition hadn't been launched, Greer would have given the talk (which wasn't about transgender issues) and no one outside of Cardiff university would have been much the wiser. What we got instead was a media backlash against trans people, with article after article defending 'free speech', each with pages of horribly transphobic comments underneath. And Greer got to spread her hateful views on much bigger platforms. Now the narrative of 'trans activists' being 'overly sensitive' has been established, petitions such as this one are being picked up by the media because it generates page views and comments. I believe in free speech and would much prefer peaceful protest or a rebuttal of her views to no plat forming, although I also reject the idea that refusal to provide a platform is the same as censorship, or that trans people have an obligation to debate or justify their existence to anyone.
It's a complex issue but the thing that hurt me the most, and caused me the most distress, was the backlash against trans people (because of course we all think with a hive mind) and the added publicity Greer and her abhorrent views got.
I absolutely agree with you that people should think a bit more before making these kind of mistakes. The stonewall film was ridiculous, a film about gay rights made for straight people. It rightly sunk without a trace, not least because it received terrible reviews. But I'm not sure what the right way to respond to all of this is. The current method of petitions and attempts to no platform or boycott don't seem to be going in our favour. To be honest as soon as I heard about this petition My heart sank a little bit, because I know what will be coming our way in response. I shouldn't read the subsequent articles and comments but I do and I take it to heart.
I'm interested to know other people's views on this. What's the best way of responding? Should people position themselves as spokespeople for an entire community of varied people? Should we be picking our battles, and if so where do we draw the line? I really don't know, I'm quite confused about it all.
Ps I'm really not trying to offend or start an argument, I just think it's worth talking about.