I don't think not being an "insensitive jerk" is the same as not acting on one's opinions.
For example, if I think that people who can't do math shouldn't be programmers, and I make sure to screen applicants for math skills, that's acting on my opinions. If I make fun of people with poor math skills for not being able to get high-paying programmer jobs, that's being an insensitive jerk.
That's true. I was taking "racist opinions" to mean "incorrect race-related beliefs that favor one group over another". If people who couldn't do math were just as good at programming as people who could, and you still screened applicants for math skills, that would be a jerk move. If your race- or gender- or whatever-group-related beliefs are true, and you act on them rationally (e.g. not discriminating with a hard filter when there's only a small difference), then you aren't being any kind of racist by my definition.
ETA: did anyone downvote for a reason other than LocustBeamGun's?
Here's the new thread for posting quotes, with the usual rules: