"Liberalization" in trade was always a farce. The US itself always had applied tariffs and importation quotas to even its closest trade partners and allies. "Free trade" is a PR speak that is used when pressuring other governments to open up their economy. Not your own.
Does it? Didn't it enjoy the power to print infinite amounts of money thanks to oil trade being done exclusively in dollars just until a few months ago? Something which no other civilization, less, society, enjoyed ever in human history?