I came here 20 years ago. At that time, not many chinese here but mainly chinese came from old generation of china and hong kong. I never experience those things before.
Over the years, more and more hong konger and taiwnese came to Vancouver and thoese things never happened neither.
However, in the last few years, more mainland chinese people came and those things started to emerge.
I have been to shanghai once and there was no order at all. There was no line up in front of the gate even for the same tour bus people. When the gate to an attraction opened, people just rushed in.
I support 常在心 and I do not think he is a racist. Nor am I. I have known many people from mainland China and they were well educated and have never done the things people mentioned in this thread. However, you cannot deny that some or maybe a few people from mainland China did the things mentioned in this thread. In addition whoever has lived here for more than 15 years like me would notice the change Metro Vancouver has gone through. It's not for the better but for worse.
Anyway, pointing out the fact does not mean one is a racist nor does he/she wants to start a racist war. Let's just try to get away from racist part of arguement.