compromise on abortion: the prochoice side changes its possition to "forced abortions for all" therefor, legal choice of abortion is the compromise...
in all seriousness though, sure there are some things that cant be compromised on, but most things can be, and we arent even seeing compromise on those issues, with one side sticking to their guns of "no tax raising, ever, for any reason" and various other issues, and refusing to compromise not because of the issue itself, but because of a general stance of being against compromise. i read an interesting article about how conservatives see the politics as a saturday morning cartoon, with themselves as He-Man and liberals as Skeletor. with that view, any compromise at all is yielding to evil, and evil must be destroyed. its a hyperbole, but an interesting one.