I’d say you’re wrong because I’ve been able to find it in most supermarkets in the countries in Europe I’ve visited. And it’s actual peanutbutter instead of peanutbutter + a bunch of sugar or weird supplements.
It’s difficult and expensive to find ones that don’t contain palm oil.
Just checked my kitchen, the store brand peanut butter from German Aldis has around 9% of additives (sugar, palm oil and salt) and it’s the only one they stock. This whole comment chain made me look up where to find 100% peanut butter and that ratio of additives unfortunately seems to be fairly common. There are brands that are 100% peanut, but for some reason these are almost exclusively sold in 1kg jars, i guess people who look for that are really into peanut butter. I mean, i am as well, and this stuff keeps good forever, so i may just go big next time i have to restock.