I get it exactly! I've come to the conclusion that much of this behavior is mistaken as "unruly". In fact much of it is "normal" and culture based. People who grow up and live in very crowded conditions in both their own space and when moving around for work or travel, tend to seem pushy or even unruly to many of us westerners. If you grew up having to survive among hoards of people (hoards that many of us never see or let alone experience), you too would probably start acting this way just to survive
Make no mistake even in cultures who live in extreme crowding there is protocol. And if that protocol is violated it will be dealt with swiftly by whichever means is normal in that culture. While this may seem off topic, it illustrates some behaviors common to most people, whether they walk, drive or commonly use only public transport.
It applies to all forms of getting around. Walking, small motor cycles, bicycles and pedicabs, motorized tricycles and top downs, cars, trucks, planes, busses, trains and even donkey, water buffalo, horse or ox powered. I have had the "privilege" of driving around a lot in some of the most crowded traffic on the planet. Amazing how it works. No traffic regs to speak of with most traffic law viewed as only a suggestion. Few if any traffic lights or controls. Everyone honks continually just like bats squawk sonar pings... and for the same reason! No they are not being rude, they are communicating just like a swarm of bats on wheels. No body goes very fast and most of the time the bumpers, tires and fenders are only inches apart. People in these places tend to drive in a way just like a mass of pedestrians negotiates crowded walk ways. Defensive driving is not a concept for driver's ed school, it is used and if not used, better let someone else drive. Learn the rules of the road right away or hire a taxi! So when I see all the Chinese tourists en masse pushing ahead, I have to remember, it is a learned cultural trait for survival. We are seeing more Chinese simply because there are a lot of Chinese on the planet and an increasing percentage of them are moving into the traveling middle class.
After moving around in, including driving, walking and using most all varieties of small vehicles, in some of the most crowded population centers of SE Asia, I learned to take a slightly different attitude toward these behaviors we view as "rude". Patience is a virtue and aggressive behavior rarely pays off and
should only be used as a last resort in the face of same. There is a post graduate driver's ed diploma just waiting for anyone successfully negotiating a leisurely drive around Manila, accident free, during rush hour
. No matter if walking around an airport terminal or driving a city street, IMO, it is best to try to blend and politely squeeze in. In the end I would rather deal with 20 mil+ people scurrying around Manila than fighting high speed, crash, go and stop traffic in LA, Salt Lake City or Denver!