Another part of the issue is how you define "least of all evils".
That's the point exactly though. No one but the consumer defines that. That's a moral ( personal ), as opposed to ethical or legal decision. It's not about telling consumers what to do with their money. But rather letting them know what they're voting for with their money.
If you'd like to only buy products which were assembled in the US using 80% or more parts not sourced from Japan, you can do so. If you'd like to source from factories from any where in the world but doesn't have that "work camp" setup, you can do that as well. As a consumer you'd be able to quickly get that information.
The moral choices the consumer makes is theirs and theirs alone. But there needs to be a convenient way to gather and compare the facts that may be pertinent to them making their decisions. Think "Standardized nutritional facts labels" but for manufacturing.