From [HERE] Spike Lee discusses race with Fusion’s Jorge Ramos. He does not discuss white supremacy as racism. He mostly complains that racism is about bad attitudes and inconveniences to Black people. This is wrong view which leads to wrong solutions. Racism is about vast unequal power not simply disrespect, bigotry and inconviences, such as stop & frisk, trouble catching a cab and standing in a long line to vote. 

What does racist/white supremacist society mean? Amos Wilson explains that, "it is about structuring social and political, economic circumstances, psychological and cultural circumstances such that one race can take advantage of another and one race can enhance itself at the expense of another. It has little to do with overt race hatred, or with negative racial attitudes or with the projection of racial stereotypes or with whites not understanding the nature of their racism. That's not it.

And when we define racism in terms of attitude you'll find yourself then solving the wrong problems. White people will stop expressing those negative attitudes, they will smile more readily at you, they will even marry you and go to bed with you but you will notice that the effects of racism, like poverty and all these other things caused by racism will continue. In fact the problems will increase.

Ultimately you must recognize that racism involves the power of one race to impose its will upon another. That ultimately then it is about power and we have to face that fact.  Whites engage in racism because they have the power to do so. And if we are to end white racism then we must end white power."