I mean, it's a penny on 1,000, or probably a lot less than that, frankly. So I can not only not imagine a person whose decision to write would be governed by such a thing, I cannot imagine a European who would come to America to copyright his work for such a reason.
Europeans can only write if their work can be copyrighted in the United States
( z1 possible :ARG1 ( z2 write :ARG0 ( z3 person :mod ( z4 continent :name ( z5 name :op "Europe" ) ) ) ) :condition ( z6 possible :ARG1 ( z7 copyright :ARG1 ( z8 work :ARG0 z3 ) :location ( z9 country :name ( z10 name :op "United" :op "States" ) ) ) ) :mod ( z11 only ) )