There is no "I" in "You"

[Gemini]

Buddhist philosophy -is- an eastern philosophical tradition.  If the eastern traditions seem more skeptical to you, after you've removed every sub-branch that doesn't seem skeptical to you, it's no wonder that the eastern traditions seem more skeptical to you.

Maybe the problem is that you think of Buddhism as being intrinsically religious. 

It really isn't. Not in the way Christianity is. Look to the controversy over whether Buddhism is a philosophy or a religion. (The answer is, it depends on the practitioner, imho).

Next: why do you think I've removed every sub-branch of eastern philosophy that doesn't seem skeptical?

Finally: kudos to Thales of Miletus. But non-westerners also contributed to the origin of science.