If you KNOW you can beat these people on principles, then you should be capable of giving them the benefit of the doubt and assume they are a good person. No mud slinging needed sir. An excellent lesson Ron Paul has said himself.
No mergers can already be annoying enough on the customer without the government's help. Besides there are too many slick words to get around this, fake mergers, buyouts, etc.
None of this, someone is a racist should matter. Would should defeat these people only principles and philosophy rather than trying to go after them on minor social issues that just piss everyone off. We'll never know if it is really true anyway.