If earthly things were hevel, Nosson, Hashem would never have said “ki tov” when He created those things.He looked in the Torah and created the world. The world is gashmio, but it is based in ruchniyus. And to be honest (and I try to be, even when I am ridiculed by some), I think it’s a little wrong to say those things are hevel.
I more or less think I know what you are trying to say, that we have to not put stock in things that are not important or of little intrinsic value, and always recognize what really IS important, namely, the brachos from Hashem. But don’t for one second try to convince yourself that the gashmiyus of this world is worthless. There is a reason for all things, and the original world that Hashem created was both gashmi and ruchani. Without one, you cannot have the other. If you are all gashmi, you are unable to connect with Hashem. If you are all ruchani, you are a malach. Neither of those things is what Hashem wants of Mankind in general, and Jews in particular. Because if He did, we would either not care about the Torah, C”V, or, as I said, we would be malachim.