It's OK Shieldywieldy, it's not your fault (it is, though). It's a cultural thing and it's beeing going on at least since the 50s.
Look at the diference in the top selling cars in the US vs UK for instance.
Top two in the US
1. Ford F-150, 23 mpg
2. Chevy Silverado, 20 mpg
Top two in the UK
1. Ford Fiesta, 51 mpg
2. Vauxhall Astra, 47 mpg
I've made all mpg figures in US Gallons, and the figures are for Highway Miles for the US cars and Extra Urban for UK (think they're basically the same thing?)
All four cars are made by American companies, so it's not like you don't have access to some crazy fuel efficiency tech that the rest of the world has.
And to be honest, the fact that you think it's BS that a finite resource has a relatively high price in the first place is symptomatic of a culture that is entirely geared towards consumption (not just of oil, but everything else that is and can be consumed by a country is underpinned by oil) - every aspect of US media, culture and politics seems to have that one goal (to an outsider at least).