<span>D) the imposition of a state religion ensured a shared culture</span>
By definition, the Emergency Quota Act was an immigration policy passed by the United States Congress during 1921 in which the act states that immigration must be restricted inside the United States. This is because the overflowing number of immigrants already pose a threat to the Americans regarding occupations and employment.
Roosevelt is telling the American public that maintaining an isolationist policy amidst the war will not protect them. All the freedoms that he listed on his speech would be threatened by the march of the Axis powers and it would be a matter of time when they have to confront this threat.
I wish I knew not that good in history lol sorry