This isn't true. Here's a comparison of the EU, several individual European countries, Japan and the US[1], and there isn't much difference tariffs or trade barriers.
Global trade-barriers have been reduced to virtually nothing among developed economies, the US isn't unique at all. This is a stale old meme that seems to be popular in the US because it frames the US as a sort of victim of global trade which is a popular political narrative but not evidence backed.
The real difference is in the overfinancialised, laissez-faire capitalism of the anglosphere (the UK suffers from the same issue of deindustrialisation, Australia as well), comopared to the industrial policy and state/big business dominated capitalism of Japan, Germany, France and so on.
[1]https://blogs.lse.ac.uk/brexit/2017/10/24/the-eu-isnt-protec...
Those countries also have much higher trade barriers. The US is almost unique in how few trade trade restrictions they (used to) have.