Although i think they mostly recognize it as customary international law.

Nonetheless international law isn't really worth the paper its written on. The bigger thing is there are a bunch of other countries dependent on the strait that might have something to say about it.

It's interesting that these days any treaty that the US hasn't signed is probably a decent one, especially if hundreds of other countries have signed it.

It's usually the US and a bunch of garbage regimes on these lists, I guess there was a message being sent over time.