Americans do actually frequently use the metric system, though. We tend to use a mix, with many more precise measurements, such as medicine, being measured in metric. There’s some weirdness, to be sure; if you buy weed in the US you’ll see it being measured in both ounces and grams. Millimeters for small things are pretty common, even while still using feet or miles.
Basically, we do whatever is convenient at the moment.
Nowhere near as confusing as disagreeing on what a million or a billion is.
I have to ask, do you use Discord? Because I see Pepes and Peepos all over the place there and they aren’t especially likely to be associated with right-wingers at this point as far as I can tell.