Why is oil imported from dictatorships and oligarchies "greener" than oil imported from allies, or produced here?

“See, this is good thing!”

On his first day in office, Biden canceled the importation of oil from Canal (which is now simply shipping it west, to be burned in China), and began the process of shutting down the US oil industry. Since then, he’s pleaded for more oil from Saudi Arabia, is working to help Iran evade the sanctions limiting its oil sales, and is now looking to Venezuela for fresh supplies.

If we did this to another country, turning them from an energy-independent, exporter of oil, to one that was hostage to its enemies, while destroying the value of its currency and weakening its military, our target might be excused for thinking it was under attack.

Just saying.