"I find that utterly unacceptable."

I don't care.. divisive hypocrites are not entitled to 'normal' standards of respect...

"If you have time to make vile accusations, you should make the time to substantiate them."

I'll bear that in mind for if I ever make vile accusations on a par with those you habitually resort to...

For the moment I'm just sarcastically dogging your heels
to remind you that your tiresome objectionable behaviour is not going unnoticed...

You do not have free reign to slander and malign, absolved from all consequences......