The biggest effect it had on America was how Americans reacted to it. The shock and outcry was the largest in years, probably greater than the Pearl Harbor shock. It created a lot of pro-Semitism in America (good feelings towards Jews, a lot of sympathy), and it also resulted in the creation of Israel as a place for Jews to live, which has caused a lot of conflicts in the Middle East that America has gotten involved with. Basically: it shocked Americans, it made them think, it resulted in the creation of Israel and American relations with Israel and the Middle East changed, it resulted in a lot of sympathy for Jews.
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I'm not sure about the chonology of the above. The Holocaust was a bit of a 'non-subject' in the U.S. till the 1970s: when Raul Hilberg began his research on the subject in the late 1950s he found people regarded his work as almost subversive and likely to cause problems for NATO, which had admitted West Germany as a member in 1955. Antisemitism, probably of a not particularly virulent kind, was still widespread in America. The initial 'shock and horror' was soon forgotten in the U.S. and the notion that Israel was created by guilt-ridden Allies is a myth. My own impression is that American pro-Semitism dates from the 1970s.
The recognition of the realities of the Holocaust shamed the Americans for not joining in the war against the Nazis sooner. Thousands of Jews relocated to the Unite States and found freedom and decency. Soldiers of the Allied Forces realized the real reason why they had fought in the war. The world learned that two people groups could be absolutely atrocious and evil. They realized that they needed to globablly come together to prevent any other nation ever warring on the world and in such atrocious ways. Many Jews were able to go to Israel. The Jews learned you cannot always be pacifistic in policy and action. Now Israel has the best armed force. Another benefit was the Underground Resistance network. Nations learned they could help others even with totalitarism or communism oppressing others. It is sad that genocide has happened again. So they did not learn as well as they should have.
alot. it's really sad
They talk about the holocaust?
Nope
The main effect was six million less people were living.
I wonder what you mean by holocaust communities.
The US constitution pre-dated the Holocaust by about 150 years, it did not prevent the Holocaust happening the first time. The Holocaust happened very far away from the USA, whether the US even had a constitution was totally irrelevant.
To remember what effect it had on 'us' is less important than what effect it had on those who experienced it.
In effect the US did stop the Holocaust. By aiding the Allied victory, in defeating Germany, the Holocaust was stopped. If the US could have stopped it sooner, it is possible that they could have, but at great cost.
it damaged it.
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 talk about the holocaust?
yes
No
The American government had no direct effect on the Holocaust. Obviously, the defeat of Nazi Germany by the Allies ended the genocide. I wonder if you are mistakenly equating the Holocaust with World War 2.
The US Constitution was not affected by Holocaust.
Nope
The main effect was six million less people were living.
well the Holocaust is important to the worlds history.