No amount of tariffs makes a blockade. De facto blockade would mean that you can't trade with anyone.
But I give you something. US can de facto blockade itself by raising tariffs for everyone.
But I give you something. US can de facto blockade itself by raising tariffs for everyone.
If you were America's founding fathers and King George 3, the leader of their government, decided to put a 10000% tariff on goods meant for the colonies, do you think they would have felt blockaded?