I wanna answer on the previous topics. (This thread is awesome, Geo King.)
For abortion, it should be legalized because it is the right of the mother to refuse an unwanted pregnancy. However, only fetuses on their first to the half of the second trimester should be the only ones allowed for the operation.
For same sex marriage, it SHOULD be legalized. Everyone has the right to be wed because even gay people have desires to have everlasting bonds with each other. Same sex marriage actually should just be called marriage, because it's the same thing with straight marriage.
For gun control, I'm kinda in between on this one. There should be a certain age where people can have possession of this weapon only for defense (i.e. at legal age). Laws should be made to punish people who have used these weapons not for defense.
For immigration, illegal immigrants should only be penalized monetarily and not brought to punishments much harsher than that. It's not that big of a deal, imo.