Roosevelt was a fraud on that.
If he really believed in those freedoms, he would never of met with the King of the Saudi Kingdom months before he died in 1945 and made a deal with him that the kingdom would provide access to the Oil companies from the American republic.
In the years and decades ahead, governments of the day would provide money and Arms to Saudi Arabia to continue oppression against the Subjects of the kingdom so the royal family there could live selfish lives and America would get oil on the back of their suffering.
The royal family fall within the Wahabbi sect a very xenophobic clan or tribe group.
The continued interests continued all the way to this day.
Roosevelt saw oil as a source of power, for the next several decades America and the Soviets would try and compete for the power of the world through different ways, such as the most closest attempt was the Afghan war, where the Reagan government provided arms for the freedom fighters in Afghanistan and fought the soviets as a proxy war. Who ever could influence South East Asia had the power to influence the region and ultimately oil. Click to view attachment
The meeting on the USS Quincy 1945
While the war went on Reagan setup the Southern Central Command in 1983 to primarily monitor the region for the sole purpose of continuing the flow of crude oil.
So Saudi Arabia is still a staunch ally of America. Without that oil America would be very vunerable, the oil in Canada can't save America afterall it is dirty, those tar sands would ruin half the Alberta province, Albertans won't stand for that from the government. Especially those first nations American natives.