You are now arguing semantics, the topic is whether 30+ nerds migrated to tiktok, we can from this discussion say that they overwhelmingly stayed on youtube unlike the other demographics discussed. A group having an order of magnitude less representation on one platform is "basically doesn't use" to me, it is hard to find more skewed population choice data than that.

The gender skew on steam is larger, but not much larger, and that is enough that you basically don't want to release on steam with a game made for women, instead you target mobile or similar because your target demographic basically isn't found at steam.