For the poor man, a simple sandwich may be too expensive. To the rich man, the lobster dinner may be cheap.
If one lives where the fuel is the least expensive, yet it's still very expensive, that fuel elsewhere costs even more does not change the fact that the least expensive still isn't cheap. Do you not understand this?
If you cannot understand this simple relationship, then you're right, further discourse is no longer possible. It's very simple, really. If fuel is expensive, it's expensive. The price of tea in China, or the cost of fuel somewhere else, does nothing to change the fact, and is irrelevant.
Avgas runs between five and eight dollars a gallon in the US. That's still expensive.
My first student, when I actively instructed full time, was a young man from Germany. He flew to the USA, did his private, flew his girl friend over, rented an airplane, and toured the country, before flying home. It cost him less to do this than to do his basic certification in Germany. That's good and well for him; relatively it was an inexpensive effort for him; relatively it was still cheaper than he'd have spent for the bare-bones training in his home country.
For many in the USA, that would have been an extremely expensive undertaking. While it may be cheap to you in your inflated economy, it's not in the USA.
If you want inexpensive fuel, try Venezuela. It's the least expensive I've seen. Far less than the USA. I've fueled out of barrels of avgas brought by road at great expense (and risk) into Iraq. I've spent small fortunes just to park in Afghanistan, to say nothing of the cost of fuel. I've scraped for it in Africa. I've had great deals in Russia. I've drained truck after truck picking up fuel in Pakistan and in the USA. I've bought three gallons, and I've taken on three hundred thousand pounds of fuel. Auto fuel, avgas, jet fuel, diesel. For the most part, it's always expensive.