I think he's probably about as racist as any rich New Yorker. Or New Yorker in general.
In my experience, people from large cities like NYC tend to see things a little differently than those from smaller cities/rural areas. There's a lot more interaction with different groups of people and a lot more observation as well. This colors their view (forgive the pun) on culture and what they see as good or bad. It differs from city to city too, say in one city the majority of the crime-ridden area is occupied by Chinese, you would avoid that area and you wouldn't necessarily want to associate with people from there. In another city, the majority of the crime-ridden area is Russian, or South American, or whatever, again, you would avoid those people/that area.
I think what makes Trump see a group of people as good or bad depends on whether or not he can make money off of them. As soon as the money runs out or they are no longer useful, they no longer matter and could be dead for all he cares.
It's a little different from good ol' fashioned southern racism which is mainly just aimed at black people because (insert bullshit reason here), but It's still shitty.