He says big businesses control too much of the food supply in the U.S.

他说，大企业控制了美国太多的食物供应。

Very few blacks at that time were able to control their musical profession in such a way. And, without such business control, they lost money.

当时很少有黑人能以这种方式控制自己的音乐职业。没有这样的商业控制，他们就会亏损。