Its a general matter of principle. Why are some personal morals OK to impose by force, and others not?

I actually feel no need to revisit any debate, because you do not take part. To have a debate, you have to have at least two sides that acknowledge and respond to what people are actually saying.

For who could be free when every other man's humour might domineer over him? - John Locke (2nd Treatise, sect 57)