I should be a Republican, because I support all the things Abraham Lincoln supported.
Hmmm...things have kinda moved on since the 1860's and the issues have changed, I'm not a Democrat because I support all the things James Buchanan or John Breckinridge supported.
As for Lincoln, he had little or no regard for the constitution, this is shown firstly in that he fought the war with the south in the first place and secondly through some his actions during the war such as the creation of WV and the intention to create a Pro-Union state out of Eastern Tennessee, his suspension of Habeas Corpus was another instance of his disregard for the constitution.
On another point Lincoln was a great believer in free enterprise and the value of individualism and hard work (With his back ground that is very understandable) he was never an opponent of capitalism, if anything it was the south which was anti-capitalist in the sense of opposing what they saw as the worst excesses of unrestrained capitalism in the land of the “All Mighty Dollar” where huge corporations and rich business man pushed out the smaller and less well supported competition and it was this same popular sentiment that would feed the populist party’s brief rise a generation after the civil war.