I think we are all racists and we are all racist to the same extent because I fear that it's inherent in all humans. A leftover from early human tribalism I suppose.
Knowing that I am inherently a racist helps me immensely in fighting my racist prejudices, so although, as the above reveals, I am a (self-confessed racist) my thoughts, actions and my interactions with others are not racist. Yes, sometimes this can be hard work but like all hard work it brings its rewards.
So my advice, for what it's worth and for those who want to take a blind bit of notice, is to accept you're a racist and to fight your inner wirings and we will all flourish in the ideal that all men are brothers (and all women are sisters etc)