That's the other thing. They never utilize half their own units like decimeters or mega meters.

Or how many of them actually know that 1 cc is also 1 ml?

I've found plenty of imperial fans that will say metric is useful under certain circumstances. I've never seen the reverse. And it's not because metric is perfect. It's because they are so snobby they can't stand the idea that "the American" system has any merit.

And the proof that both systems have merit is that two big nations use both: Canada and Mexico. Maybe not officially but every tradesman in those those countries uses imperial. Fact. And I'm sure chemists in Mexico use metric. A measuring system is a tool just as much as a hammer or a microscope. And just like different tools are for different jobs, so can different measuring systems.

But Europeans are so far up their own ass they can't admit this.

The irony being that it came from Europe, and then Europe switched. Just like the word "soccer".