I have no idea what you mean. I live in London where there's an abundance of different kinds of nut butter. I have been to many places in continental Europe, and even though the same abundance is not present everywhere, I never had an issue finding plenty.

Pindakaas (Dutch for "peanut cheese", which you would call peanut butter) on the other hand is available everywhere, at least in the Netherlands. Then again, peanuts are available everywhere, just put them in a blender or use a high-speed mixer to make your own. I've been doing this for more than 20 years now since Sweden is one of those peanut butter free countries (at least here in the countryside it is). The advantage of make-your-own peanut butter is that the stuff will contain only what you put in there, nothing else.

The Netherlands may want to have a word with you :)

And honestly it is fairly common to find peanut butter in supermarket in most of Western Europe (at least), may not be good but it exists.