<span>1. Revolt of Aragon because resented dominace of Castille. 2.Uneven laws. 3. Religion issues. 4. Resistance of Dutch Protestants (Protestant Elizabeth I back then against Phillip)</span>
Not sure if this is the answer your looking for but one could be They reacted to it harshly, and were suspicious of all immigrants that came to American from a communist country
The United States did not complain as there were at the time fears of a war between U.S. and the Soviets. John F.Kennedy is quoted as having said:"A wall is much better than a war".