That's an interesting viewpoint. I've just never looked at it that way.

I don't see how a creature that can repel the Force makes it anti-mystical. Isn't there stuff like that in myths involving magic all the time? They're basically a Jedi Kryptonite.

I think the difference is the ysalamiri aren't explained in such cold, scientific terms as midi-chlorians. I don't have a problem with an anti-Force creature, but I do have a problem when you explain the origin of the Force in such a cold, biological way.