Yeah I think the fact that the PDOC is putting their foot down speaks to how much they actually care about how you are doing. If they didnt care theyd just agree with whatever you wanted, whether it would be helpful to you or not.
Id say maybe when your next appointment comes, just try to see if your doctor is willing to talk it out abit more. They should consider your wishes too- but at the end of the day- if what is best for you is NOT cutting the dose- it might be worth listening to even if its not exactly what you want