Congress was split, as the French had helped the young United States during the Revolutionary War, however, many where confused what direction the revolution was going (spoiler alert, the French Revolution traded a monarchy for a dictatorship with Napoleon at the helm - so it didin't accomplish a whole lot).
Although both parties(the Democratic-Republicans and Federalists) had different hopes for the french revolution, they both agreed that war would be economically not possible and would possibly open the U.S up to attack, so the U.S remained neutral.
Because at the end of the day they are still human. We all have feelings, have strength, etc. No one shouldn't be allowed to do something based on their preferences. We all have different identities.
It is A because the north were offering jobs to the blacks down south, most of them took as a chance to move to a more equal and calm society without racism.
