This business has racist profilING security. I was...

This business has racist profilING security. I was sitting on one of the air vent walls outside of the building having a smoke when a building security man came to me and said I had to leave the property for smoking. I mentioned to him their was at least 7 other people smoking on the property within a few feet of me did they also have to leave the property. He told me they don't have to leave because it is private property. My smoke was already put out while others were still smoking and just sitting on the same air vent the same as other people the Security tells me this is private property I still have to leave. Why is that.? I was the only white person there. or Because I don't have a suit on. as I am writing this people are still walking threw this building courtyard sitting on the same vent wall smoking but not being told by security to leave the private property. I don't know why I was singled out but this is not an exceptible behavior from a large corporation such as this