I don't discuss sex, politics or religion with strangers. Since the world is mostly strangers, I don't advertise my views on my car, clothing or otherwise.
Among the people I know, I gently teach and work to encourage them to come around to my points of view on political issues (I consider sex and religion to be essentially private). I've taken all my siblings and their spouses and kids shooting. As far as I know, they are still for gun control, but at least they don't hate guns or gun owners.