this is objective fact, by the way: corruption in mexico is off the charts and has been forever. various interests, mostly corporate, did not want to deal with mexican lawsuits. so, they set up an isds instead.
but, it turns out that all of the corruption in mexico hasn't hurt these corporate interests much, after all. rather, the rules have primarily been used to circumvent canadian law because the regulations are more strict and more in the public good. canada is the most sued country in the world. we've lost trillions.
if we didn't see that coming, we were stupid. and we should be actively fighting to get out of it.
https://en.wikipedia.org/wiki/Corruption_in_Mexico
https://en.wikipedia.org/wiki/Corruption_in_Canada