My head's most definitely not in the sand, but pointing out every stupid thing that a guy who routinely says stupid thing says isn't going to be good for my mental health, or my relationships with people who have already decided that the stupid things that that guy says aren't as important to them as other issues.
And I'm sure that picking these fights with people I would otherwise like to call friends--even if awkward [outdated] message board friends--isn't going to make me happier, and is very unlikely to change their minds.
There are times that I would like to better understand their opposing views. And there are times that I think I might be able to help them see things from a different perspective. But yelling into the void (or into this message board) ain't gonna help.