Was the US involvement in WWII inevitable?

Obviously, President Roosevelt and Congress had a choice in whether the US would enter
the war or not. The issue, however, is not as simple as that. One should also consider the
repercussions if the US had remained neutral. It was pertinently obvious that the Axis powers,
constituting Germany, Italy and Japan, had been growing more powerful and were, in fact, winning
the war. Their aggressive campaigns lead to the destruction of huge areas, the deaths of
millions, and the creation of a world of uncertainty and chaos. Furthermore, the three nations'
fascist policies meant that victory for them would introduce extremely racist and discriminatory
policies, though it should be noted that the was already afflicted by widespread
racism. 

The three leaders had all adopted dictatorial stances and their
tyranny would have subjected many to oppression and enslavement. Such policies were out of tune
with developments toward greater freedoms and democracy throughout the world. A victory for
the...