I'm with Twik here.
If I say I'm glad someone was re-elected because she's doing a good job, or oppose candidate X because I think his policies would be bad for the country, I hope people (with the possible exception of the candidate himself) can take that impersonally. If I said "anyone who votes for X is trying to destroy our way of life," I have to realize that people who voted for that candidate will take it personally.
Frankly, there are political positions I take personally. But I am willing to have that known, and let the chips fall where they may. After all, if I really think "that policy is both actively harmful, and hostile to me and people like me," what do I lose by saying that? If I'm lucky, the other person might see that and thinks "Hmm, Tea Drinker is a Purple, maybe I'm wrong about Purples." If, instead, they think "Oh dear, I didn't know Tea Drinker was one of those Purple people, I'm not inviting her to my party," and unfriends me, what have I lost, really? A casual acquaintanceship with someone who only wanted to socialize with me because they thought I was someone I'm not. (Somewhere in between, someone might think "Yes, candidate X supports this policy that Tea Drinker thinks is a threat to her, but I like their policy about these other things," and if they say so, then I get to decide how important the issue is to me in this case.)