The cases of backout that I saw were because they didn't like being on the same side of an issue with people they otherwise disagree with [1]. Nothing to do with the statement.
Unfortunately, statements are intrinsically tied to their usage, as a natural result of the concept of context, and proponents govern usage. If I say "it's OK to be white" in some totally innocent way, and then suddenly realize that 90% of the people saying the same thing are using it to express hatred, I am not unprincipled or hypocritical to rescind, clarify, and find a different way to say what I was originally trying to say. This is unavoidable in communication and rational to account for.