Answer: There was fear and prejudice towards the Germans and Communist and that expanded to include all immigrants. They signed the Emergency Quota Act, which limited immigration: only allowing a certain percentage of ethnic groups into the united states.
Rome treated the people of the conquered land with same privileges
as their own people. The senators of the conquered land were given all the
facilities received by the Roman senators. The people slowly absorbed the Roman
culture and so the chance of further rebellion reduced greatly. The general
people were given the opportunity to watch and play lavish games and were also
given equal share of food as the other general Roman people. The Italians were
won over by the Romans in the same way.
Identity, assimilation, tribal sovereignty, revitalizing native culture. There are more but I hope these help
John F. Kennedy believe that no matter others will do to them they will keep going no matter if "well or ill, that we shall pay any price, bear any burden" they will keep moving forward. If Americans United they will make a difference and be stronger but if they are separated they can not improve as what they wished for. He believe on "defending freedom" That everyone can make a change for their country.