I don't think it's disrespectful to say no to a request that I should change my use of language to affirm a philosophical or religious worldview I do not share, any more than it would be disrespectful to say to a Jehovah's Witness that I do not want to attend a meeting they invite me to and join in with the "Amen" at the end of their prayers.
Is it disrespectful of someone to accuse me of being a bigot because my rather elderly brain failed to use the demanded pronouns? This has happened to me, and it wasn't just "your behaviour seems bigoted", it was full-blown shouting at me, followed by complete unwillingness to discuss what we agreed and disagreed on. My request to discuss our differences has been ignored; I do not see why their demand to use their language deserves any more respect. I don't think it's disrespectful to say no to a request that I should change my use of language to affirm a philosophical or religious worldview I do not share.
Is it disrespectful of someone to accuse me of being a bigot because my rather elderly brain failed to use the demanded pronouns, or failed to avoid using them at all? This has happened to me, and it wasn't just "your behaviour seems bigoted", it was full-blown shouting at me, followed by complete unwillingness to discuss what we agreed and disagreed on.
Language is largely used instinctively to convey thoughts, and demands to modify it really need to be backed up with good reasons. If I must use incongruous pronouns it causes cognitive dissonance and causes me to lose my train of thought, because my attention has to be on policing my words. I think the reason sexed pronouns are such an important thing to trans people is because they know that they are not in reality what they wish they were. The reality represented by sex-based pronouns is therefore uncomfortable.
When you divorced, you wanted other people's language to reflect the reality that your marriage was behind you. So we are down to "what is reality?" My view of sex and gender is absolutely relevant to what words mean to me. I have always used third person pronouns based on my perception of the sex, not the gender, of the person I am referring to. Gender is not a binary, so the pronouns "he" and "she" etc do not map onto gender ("masculine" and "feminine"). I am more "feminine" in some respects than many men, but also "masculine" in other respects. But I am entirely male; and it would be impossible for me to be some mixture of male and female. This also applies to my son; he is not a woman just because he wishes it were so, and I do not have to lie every time I mention him.