Yup, but the collaspe of the US economy in the 1930's was a complicated affair, can't really blame Smoot-Hawley. But even if you could so what? By the 1930's the US had already become the most powerful industrial nation in the world. And it all happened behind tariff walls.
Smoot-Hawley was but one piece of the puzzle, in a world wide depression...yes.
The USA had left most tariffs behind, by then, though. S-H was a throw back and produced the opposite effect wished for.
Now talk about the recent steel tariffs.