I would say to them "I don't know, you pick one for me". After all, pronouns are for others with whom you are not part of the conversation speaking to one another about you. It's odd. The argument should be about what "your pronoun choice for someone else is" not "what pronoun I should use to describe you". You are not part of the conversation in which a pronoun directed at or about you is occurring and therefore your desired pronoun is completely irrelevant.
_________________________________________________________________________ “Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
When I hear "they them" requested, I mention my preferred is, "your eminence, your holiness, his eminence, his holiness".
Some Seattle area day care teachers will try to transition your 4 year old children. 1)It starts with changing the name to the middle name. 2) Then there is a new name. 3) Then identifies with a exclusively opposite sex name. 4) Then they / them pronouns. 5) Cross dressing
All children in the class get newly made name tags each day to wear at school and home. The whole class must transition.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway The man who makes no mistakes does not usually make anything.-- Edward John Phelps
I would not buy something that runs on any kind of primer given the possibility of primer shortages and even regulations. In fact, why not buy a flintlock? Really. Rocks aren't going away anytime soon.