well, we could debate how they "earned" it if you want to take that route. Or the role the government played in facilitating that earning, ie the government provides and maintains the infrastructure necessary for our economy to function at all, police protection, education to provide competent workers, etc. Or the morality of having wealth in the first place.

I may "earn" all the money I get in my paycheck, but I can't just refuse to pay my landlord because I think he takes too much of my money. I could, but I'd have to move out. Paying taxes is the cost of living in the society we have and reaping the benefits of living here. You can't get around that unless you want to move to another country, or unless you can manage to change this country to fit your desires.

edit: I'd have to agree with The Redneck that for the "North" to mock the "South" as being institutionally racist is pretty hypocritical. All were guilty of such things at that time, and quite frankly, having lived in both the deep south and the industrial midwest, I'd say the south has done at least as good a job coming to terms with and addressing the problems of racism as the rest of the country.