The definition of racism involves the idea that one race is more superior than the other. Therefore, holding the right to govern the so-called inferior race. Of course, there will always be the victimizing members of the Klan, Black Panthers, Mexican or Russian Mafias and, the list goes on and on.
Members of such groups will persist to unjustly terrorize anyone that does not share their demented ideologies, in an attempt to gain political power. These extremists are on the high-end of the "racist meter" and, are rightfully labeled racists. Cults like these remain in existence because, they force their malignancy on loners, small small children and anyone vulnerable enough to be "infected".
However, to this day, racial intolerance is experienced and exercised by all "ethnic fellowships", if you will. It runs deeper than just the KKK or other monomaniacal cults. Racism continues to accelerate and will continue, for as long as one can be deemed racist for using the wrong word or expression. It will continue, for as long as ethnic groups or individuals, stand on symbolism and the notion that the rules don't matter. There is constant advancement in what is and, what is not acceptable. The rules are not general, and are constantly changing. Therefore, creating steady turbulence among the masses.
Each fellowship has it's own codex of criteria, defining what is acceptable in terms of how they are to be addressed, described, and acknowledged but, with ceaseless amendments to the "what defines a racist" dictionary. What one race might find acceptable, the other might exclaim as, "bad form". This type of diversity in judgment makes it easy to label someone as racist and, prevents racism from even approaching abolishment.
Does an inherent difference of opinion and, voicing that opinion, truly make someone a racist? How does one come to be defined as a racist when in fact, the rules that define you as such, keep changing? Am I a racist now too, simply because I disagree with the idea that one should not be allowed to use the word "articulate", to describe an African-American? Or, does that make the African-Americans who are offended at the use of that word racists, because they are intolerant of the white mans liberal definition of "articulate" and, too superior to be addressed as such?
Concise and to the point, racists still exist because, anything you say and do can be construed as racism by anyone who decides to take offense of your words or actions.