There are a LOT more than you think. But we're unicorns. Sought after so aggressively sometimes that it gets weird and creepy/uncomfortable quickly.
From my experience here over the past many years, as well as stories I've heard and witnessed involving other F/M friends I have, we tend to not be as open about it. The many male lees I've interacted with over the years sadly seem to ruin things for the good ones out there. The majority become very clingy and even demanding of my time and attention and make things awkward by being far too excited early on that they ignore the fact that we have our own wants and desires and ideas regarding our potential sessions because they fixate on the idea that they *might* have their tickle dreams come true and treat us like fetish dumpsters just here to strictly fulfill their needs.
Again, that's based on my personal experience. I know there's guys out there who don't act this way, but the majority of them do. So it's easier to get to know someone first and THEN reveal the full game.
When I first met my bf, I was looking for a dominant tickler on another site but as soon as I caught my breath and regained composure after he wrecked me, I turned the tables and destroyed him, surprising him with the fact that I was actually a Ler leaning switch .
We're out there, I promise. There aren't many in comparison to other tickle dynamics, but we're here.