Because we see humans as humans, and feel that the laws that divide the 2 categories are unjust, unjustified, inhuman and arbitrary. If noone would be declared illegal, nobody would work for less than minimumwage and compete away the inborns. Before the 1900's or so, nobody needed a passport.
I am a proud liberal. I don't recall equating illegal aliens and legal immigrants. How did you reach your sweeping generalization about liberals?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.