It may not apply to everyone, or even a majority of people who go out of their way for something new, but I know exactly what the parent comment means.
Well, firstly, there was a misunderstanding in the parent comment, but ignoring that, I understand you are saying that you derive enjoyment from new experiences, which you have actively sought out for at least a decade, and don't enjoy the company of people who are not like that.
But do you mean to say that you wouldn't enjoy meeting an old Welsh farmer who is not like anyone else you know? From what you've described about your interests and activities, I imagine you might enjoy the experience, at least for a while.
From what you've said, you wouldn't want to be like him, but that's a different thing to the experience of meeting him, isn't it?
> people frantically trying to experience "new" things as an effort to quiet the constant agitation of their souls
...and pointing out that there are different kinds of, I guess, opportunistic openness. One is the normal, well-adjusted kind where you say sure, let's try some Chinese food or hey, I've never been to Wales, should we go to Cardiff this weekend? It's the Michael Palin version.
The other, darker one - the one I had and which the grandparent was referring to - is the kind where you're constantly looking for the next thing or place or whatever that will make you feel content with life. It's not about experience for experience's sake, it's about trying to find something, anything, that will soothe your soul. This is the Anthony Bourdain version.
It's not that I wouldn't want to go to Wales or meet the farmer; I would, of course. The difference is in the motivation and the satisfaction I would derive from it.
I used to be in Anthony Bourdain mode. In that time, Michael Palin mode seemed a world away - non-resonant and unobtainable.
Eventually I changed into Michael Palin!
I don't mean the food all tastes the same, but rather, you've adapted to the idea of trying unfamiliar foods. At this point, every new food you try has a risk-reward where you could feel somewhere between extreme disgust or delight on either end. And people who are more open to trying new foods just weigh the reward higher than the risk. Conversely, less open people will weigh the risk higher, or they just might not care. Maybe they think, "Food doesn't move me that much. It doesn't make me nearly as happy as my sheep." (Of course, maybe they don't know because they've never tried sesame chicken.)