This is great logic. If it is impossible for a person to be both racist and polite then the solution to racism is everybody remembering to say please, thank you

This is great logic. If it is impossible for a person to be both racist and polite then the solution to racism is everybody remembering to say please, thank you and pardon me when applicable. All social ills can be treated through decorum, hence why you never hear about bigotry amongst those that have been raised to adhere to strict social graces, such as the British aristocracy for example.