Sometimes that irreversible consequence is genocide which by definition has a lot of people with extremely limited possibility to exercise that free will. Like having choice between suicide and being killed for no own fault. Or just killed full stop.

And it is not like genocide would be only example, just extremely easy one.

In simolar situation, when boss or company just let's people to do whatever and then laws get broken, people harass each other and children bully each other, we blame teachers and bosses and parents.

You can't play reaponsible father while letting children bully sibling. Not even in kids adulthood.