> They didn't change any laws, did they? So it was as legal earlier as it is now, isn't it? It's just that someone found the right loophole that was always there.

In the US, it was banned in most places until 2018. The Supreme Court invalidated the ban that had been in place until then.

> The Supreme Court invalidated the ban that had been in place until then.

The Supreme Court interprets existing law, don't they?