Why does every city have a Nazi Holocaust museum, but there are NO Black Holocaust (slavery) museums?

Is it not enough that you have your own month? your own schools? scholarships for you specifically? Jews don't have any of those things yet you don't hear them on here complaining. You forget that black people sold there own slaves to the English and Spanish, Jews didn't sell there own people or rate them out. But yet you want more because you think you deserve it? Yeah right. Tell you what why don't you work hard at something, save your money, and build a memorial for slaves.