There were no 'shoulds'.
The US had a duty to it's citizens, not to those in a far off country. The US was facing increased tensions with Japan who had killed millions of civilians, it was still recovering from 'the great depression'. It is true that the US could have accepted Jews trying to flee from the Nazis, but it was afraid that they would harm the economy.
One cannot say seventy years later what should have happened: The US did what it could at the time.
They talk about the holocaust?
The U.S. started to help in the Holocaust when the Japs bombed Pearl Harbor.
The US Holocaust Memorial Museum in Washington, D.C. ___ Alternatively, you might prefer to donate them to a Holocaust museum in your own state ...
The Holocaust was not the fault of the US! It is sometimes said that the US and their Allies did not do much (or anything) to stop the Holocaust. See the related question.
They didn't do much help because America refused t negotiate with any Hostile groups or countries
NOTING
US Veterans Affairs.
The US Constitution was not affected by Holocaust.
Please have a look at the related question below. It is not at all obvious what would have helped.
i don't now if this is what your asking but russia and the us came and liberated everyone that was left. and the Germans lost the war. sorry if its not what you are looking for.
they eat bugs?!