The answer is it depends. Running Colwell's column was an editorial decision. Admittedly, this column is a study in stupidity offending anyone who has an IQ above 3. But I'd run it again. This catch phrase, offensive in its inoffensiveness, is empty and trite and would censor Smith and Colwell.
Offensive views exist.
Many strides have been made in the past 30 years to eliminate these prejudices. So many, in fact, that some people contend that they don't exist. And because they are so subtle, they rarely surface in such blatant forms such as Colwell's column or Smith's ad. They would never be forced to think about, to discuss, the absurdity of them. It would be as if their ideas didn't exist.