[bweitzman]

I never said "X is illegal/legal therefore it is immoral/moral", and I don't agree with that sentiment.

consider:

x ∈ X x ∈ I X ⊆ L Y ⊆ L therefore ∀ y ∈ Y, y ∈ I or even just ∃ y ∈ Y, y ∈ I

that doesn't make any sense.

That's basically what Lawtonfogle was saying, where X is some other country's laws, Y is our country's laws, L is the set of all laws, and I is the set of immoral laws. The fact that slavery is legal somewhere else only proves that's it's possible for a bad law to exist. Doesn't mean that we have bad laws in our own countries (which of course we do, however)