Minority group? Actor? Race?
Why don't you try again WITHOUT CONTEXT?
I'll help you a little: try to look it like a little kid would.
I did not specify who this actor was or what the purpose of the image was. It is easily deduced that this person is taking on the role of another race as per the make up. Let's say its actually a halloween costume, you have someone clearly acting as something they are not, which in this case is a minority group. He has all the hallmarks of a black caricature. The dark make-up is applied in such a manner where parts of his mouth surrounding his lips are not touch so as to give the illusion of larger lips.
Even without context that this is Al Jolson, it is a racist image. It is our job as adults to judge this imagery, I do not leave it to children.