Just an example. Take my planespotting hobby.
We have witnessed Caucasian folks who come to our locations, and act as though it is their own. They've cut fences to make bigger holes for their bazooka lens - If you recall Merkeat Hill which was beside the Changi East base. Before its closure there was actually a huge hole in the fence which was cut, and one could actually walk through onto the airport's property.
These folks dont care, because they're here for 1-2 days max, and they move on to other greener pastures. They can ruin a good hobby for many local folks. Plenty of examples - closure of Merkeat Hill, double fencing around airport perimeter etc.
bad attitude and behavior are equal opportunity and fair, they are contagious and no one race is inmune.
I have witness so many different groups doing abhorable things while they shoot, but I will not stoop so low and say caucaian photographers are worst or local Singaporean Chinese are worst, or PRC Chinese are worst.
Your statement is very bigoted, but I would not cast all your friends, family and ethnic group to be bigoted, but you only.