Metrics are fine, but from an engineers point of view, they don't make a bit of difference.
One good thing with the english system is the reliance on fractions (outside of engineering). Learning fractions gives a better visual correlation then the decimal system. Metrics are only helpful in eliminating fractions...
In reality metrics are the domain of The Hate America, Let's let the French Control Everything left.
I'll have to disagree with you there. I don't see everything "International" as a conspiracy against the U.S.