Not sure, if you're actually looking for an explanation or rather just want to rant and/or hope for dating tips, but maybe still helpful to be aware of:

With your specific expectations, you're somewhere to the far left or far right, whichever way you want to read it.
For example, this graph could be applied to alcohol consumption, with 0 on the left and lots on the right. Then you're on the far left.

The Y-axis shows how many people exist in that range. There's some median alcohol consumption, which is going to be in the center of this diagram, where most people are. At 0 alcohol consumption, there's very few people, because it's an extreme.

Obviously, this simplifies a lot. In a real survey, there's probably actually somewhat of a bump at 0 alcohol, because certain religions prohibit consumption.
But yeah, in general, you're hoping for relatively many extremes, so the number of people that match that are quite low. You will naturally get magnitudes more romantic interest from Average Joes, because there's just magnitudes more of them.

As somebody else already said, try to find groups that naturally attract folks from the extremes that you look for, like outdoor sports groups.
Online dating, as problematic as it is, can also be rather good at finding very specific extremes.