Ignoring Super-PACs for a second, we don't need to grease some palms to get things done in this country. USA does not rank that high in corruption. It's not that big a part of day to day government compared to countries that have a serious problem. We have effective government institutaions. Fox news is not state run, it panders to one political party that happens to be in power.
The metric system is not the best example or even a good one. I'm not going to defend the decision, but it's simply a tough thing to handle politically. Depite the issues that it causes, it's not a good indicator of living conditions in a country. It's a costly nuisance more than anything.
I can definitely agree we have our issues. Specifically, high incarceration rates, medicare, and infrastructure. These are issues I'm very upset about. That doesn't make us a third world country though. Just below average (amoung developed countries). You have to be delutional or out of touch if you think living in the USA is like living in a third world country.
Still doesn't stop the nutters from opposing it because it's supposedly a tool by the NWO to take over the world, with the US remaining as sole resistance [1]
The FPLA requires metric units to be included on labeling.
https://en.wikipedia.org/wiki/Fair_Packaging_and_Labeling_Ac...
https://www.nist.gov/standardsgov/compliance-faqs-packaging-...
But even if you haven't read any of the text on a milk jug over the past half-century, surely you've seen one of these before?:
https://images-na.ssl-images-amazon.com/images/I/71x5rVYbJUL...
"I want a pound of sugar, not 453g!"
Turns out the world didn't actually burn down. The containers mostly stayed the same size, but I think they slowly gravitated towards logical sizes (so e.g. that 453g package became 500g or 400g at some point)