IF A 'NON-BINARY' PERSON DEMANDS PEOPLE USE 'THEY' AND 'THEM' TO REFER TO THE PERSON IN THE GRAMMATICAL 3RD PERSON & 'THEIR' FOR THE POSSESSIVE PRONOUN; THEN SHOULDN'T 'THEY' USE 'WE' WHEN SPEAKING IN THE FIRST PERSON 'SINGULAR', AND 'OUR' TO INDICATE POSSESSION (VS. 'MY')?