> What is the point of this experiment?

To see if your methods will actually result in anything good.

> Is it OK to propose for Ukrainians to sabotage the lives of Russian generals?

Of course. Top military personnel are a valid target in a war.

> I'm trying to apply good faith, in which case I'm going to assume you're not arguing that there has never existed a set of circumstances under which such actions would be "OK".

Pretty much. If you have to resort to terrorism, then your goal is probably indefensible.

Violence is defensible only as a response to violence.