So English is not your first language is it?
If you want to know the answer to that question, then pose it in a new thread, it is not germane here. And if I happen to notice the new thread and find it worth paying attention to, I will answer you then.
In the meantime, I repeat for the umpteenth time:
If you care about what happens to your dick, then pay attention to where it finds itself. No one else can possibly for that for you.
If you wish to debate the specifics about whether or not each of us should be responsible for our own dicks (or their pleasurable equivalents such as we may have), then have at it.
Don’t play word games though. The OP asked specifically if certain people have an ethical obligation is some situation.
If you answer is YES, then, please, at least, 4 pages into this thread, someone please point to a specific ethics system that would obligate someone to do some such thing, and explain why.
If you can do that, and that is a big if, then we will ask if the people mentioned in the OP are obligated to that particular ethics system or not.
My answer to the OP is that there is no such ethical system that anyone is bound to, other than a professional one, and there is no reason to believe that all TG people are bound to any ethical system at all, let alone one with the results that the OP asks about.
It is really simple logic.
You could easily demonstrate me wrong with a single counter-example: Show me the ethics system that contains the matter asked about, and is bound to all TGs, and we are done. I will gladly admit I am wrong if you can do that.
Word games or tricks have nothing to do with it, just that no one here can assail even the simplest explanation I provide, can not provide even a single counter example. Instead we get increasingly contorted “what-ifs”. So why not admit you are all wrong, and move on? Or just move on and live to debate another day after gathering more research on the matter?