None of that is good, and it obviously makes him look very racist today. But he lived right at the post-Civil War peak of racism and was part of probably the most racist generation ever in the Northern US. His views would be considered moderate at the time he served in office. Keep in mind that the Ivy League and academics in general supported eugenics almost unanimously circa 1910. Had he lived to see WWII, I have no doubt he would have repented of that error. I'm not saying he would be a civil rights activist today, but he would probably be fine with the post-1965 status quo.
Today, he would be Sanders on domestic issues and G.W. Bush on foreign policy. I presume he would oppose Obamacare from the left and simultaneously oppose almost all of Obama's foreign policy from the right. I don't think he would care too much for interest groups and he would be incredibly ticked about Citizens United. Maybe he would vote Dem generally, but try to make them more populist? I'm sure he would have supported Bush in 2004, though.