When doing a rush, is it enough to harass villagers to the point where they can't work or do I actually need to kill them?

See, I usually have trouble with the rush strategy and countering rushes. It requires a lot of micromanaging and also it's nearly impossible to block villagers from getting back to their TC. I really struggle with the advanced technique campaign in Dedinitive Edition, while I know about things such as boar luring, I still cannot seem to master the rush.