Just to be clear, “extermination of a social group” wasn’t ever the extermination of the individuals. Dekulakization was mostly carried out by poor farmers, not by a central authority, and the harshest penalty was normally forced relocation, not murder. The masses were so hungry against the kulaks that the soviet government literally had to introduce maximum quotas of who was designated a kulak because poor farmers were rabid against them.

Dekulakization was a fucking mess, but it wasn’t an extermination in the genocidal sense of the word.