Well, the "fat" part is true, the US is #2 in obesity among developed countries. In many education metrics we are average or below average compared to the OECD countries (despite spending more than others) - let's round it out to "average". The others are less measurable.
tertiary education is just one metric. And yes Mexico is #1 obesity but that doesn't mean that the US being #2 is good. We are horribly overweight compared to Europe and Asia.
OP's shining example of Mexico is essentially as obese[0], and far less educated[1] than Americans on average. It's embarrassing to be this blind to the state of things when you have the resources to check your opinions for accuracy.