The figures are not correct, South Korea, with which the U.S. has a trade agreement, is not charging a 50% tariff on U.S. exports. Nor is the EU charging a 39% tariff. To me it is not surprising that Trump lied, what is interesting is that people take anything at all that Trump says at face value, considering that Trump lied over 30,000 times in his first term.
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Historically speaking, these tariffs are absolutely enormous. They are much higher than the famous Smoot-Hawley tariffs imposed at the start of the Great Depression...
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Interesting times.