As I said, retaliatory tariffs to punish a country for blocking US imports is one thing, but that’s not all Trump is talking about. He is also talking about tariffs for the sole purpose of protecting American industry. Trump is advocating the very thing the Japanese were doing that angered Regan
Reagan imposed semiconductor, motorcycle, and auto restrictions expressly as a protectionist measure. None of Reagan’s import restrictions effected a change in Japan’s import policy.
Japan didn’t use tariffs during Reagan and they still don’t.
They employ far more effective non-tariff barriers in order to severely restrict access to their home market. China uses a similar policy.