It is a question of the lesser harm preventing the greater harm.
Innocent people may be inconvenienced, but it is better than slavery or death.
Slaves who are liberated from their owners are also unemployed, but they are not slaves anymore.
We are facing either slavery or war.
Harm is being inflicted on a daily basis, domination is being consolidated on a daily basis, resources are being plundered on a daily basis.
When medicine is injected, it can sting, but it heals. Medicine may be bitter, but it cures.