People are amazing creatures. I think that we should teach our youth about "minimal group studies". These are experiments in which youth are divided randomly into two groups.
Youth members of the groups then "assign points" to anonymous members of both their "own group" and the "other group". Even if there is NO BASIS for being a member of "the group" (as selection is random and not based upon characteristics or qualities), youth consistently award more points to the members of their own group. The conclusion of the studies is that people show "in group" favoritism. If we can see how much of "what we feel to be right" simply feels right because we're "creatures of habit and familiarity", then we have more freedom to set aside our primitive emotional responses in order to use reason and logic when interacting with our ever expanding world.