I think the point I (and a few others are making) is that you can disagree with someone politically and yet not condemn them as scum of the earth or as faking it. I seriously doubt Damon is faking anything. He has no need to. He could easily ignore politics and hang out in his Hollywood mansion all day and not give a shit.
Not everyone who disagrees with you politically is an asshole. I probably disagree with most of my friends and family politically. And we still love each other.