Dundas wasn't a "counter-abolitonist" though. He believed that slavery should be ended, but that if it was abolished immediately the sudden adjustment would have a detrimental effect on the freed slaves.

"It is impossible to emancipate the present Slaves at once ; nor would their immediate emancipation, be of any immediate benefit to themselves ; but this observation does not apply to any of their descendants, if trained, and educated in the manner I have suggested." https://archive.org/details/debateonamotion01commgoog/page/n88/mode/2up?q=Dundas