Laws are just a consequence of an actual cultural change, and can only succeed (and not precede) the conversion of hearts and minds. Voting and democracy should not become a device to placate the dissatisfied masses into silence, make them lineup for ballot, to choose a lesser evil who, in most likelihood, will turn out to be a egotistical power-seeker. We shouldn't conflate voting with "will of the people."
What else should you expect when people are limited to only two political parties? It could be worse with only one political party.
We don't need more political parties, we need solutions to manage the incompatibility.
History shows that if a society is racist the absolute WORST thing you can do is have a strong government, as that government will likely be filled with racists who will pass racist laws. (See The War on Drugs and/or Jim Crow Laws)
The idea that more government is the solution to racism denies the entire history of this nation. Government is not now, nor has it ever been the solution to the problem of racism (nor any other problem), Government is like it always has been and always will be the problem...
the Classic Libertarian saying "Government: If you think you have problems, wait until you see our [government] solutions"