The concept of white privilege simply means that white people, in this area of the world, don't have as many negative social, political or economic consequences based on their race.
First of all I read your whole post there wasn't much with which I disagree.
And I definitely agree that a person should periodically self-examine. They should look within themselves and try to root out bad habits, bad behavior, bad assumptions, etc.
I think everyone should "check themselves" in all things, counting their blessings and seeing their shortcomings. The best place to start with this is "Do unto others as you would have them do unto you", IMO.
And I understand the concept of privilege. Some people, through circumstances they had no control over, are born into wealth and vast opportunity. And some are born into poverty and limited opportunity.
What I don't see is the how the focus on race does anyone any good, except for the few who earn a living assigning racism as the core cause for every problem.
In short, I think White Privilege is a convenient scapegoat for people who want to assign blame but can't find someone to blame.
In the quote above you cite social consequences.
That is people. If there are people who are oppressing blacks in social situations let's identify them, shame them and discipline them. Let's not blame some abstract concept that says every white person(and no white person) is to blame.
You cited economic consequences. Economic decisions are made by people. If economic enterprises are treating people differently because of skin color let's nail them to the wall. Why blame society when we can blame the offender?
You cited political consequences. I'm not sure what you mean here as we just had a two-term president who was bi-racial. But politics is definitely people-driven. We don't have to blame some fuzzy concept. If some politicians or govt officials are treating people differently based on race it shouldn't be hard to identify the offenders in this era of intense media focus on all things political. Let's find them and get them fired.
Let's go even further.
Let's all criticize every club, organization, event, award show, bloc, college and charity that identifies with a particular race and therefore tacitly excludes other races. Does anyone disagree with this last suggestion? I think it would greatly improve race relations in a few short years.