He's indulging in the use of a deeply unfortunate stereotype and he's helped along that road by bad art.
In order for it to be actively racist, Parker would have to be espousing the idea that everyone from Brunei is a lecherous, hedonistic sot with a hooked nose and bad skin, and that ain't what's here. This looks more like he tried to come up with a generically unlikable rich douchebag and did it poorly.
Calling something racist when it's just stupid does no one any favors.