OK, this is what I don't understand. The Mainland Chinese are spending money in Hong Kong. They are bringing business to HK, which stimulates economic growth and provides employment, etc. Why are the locals mad at this? Yes, the price will increase as the demand increases and the supply becomes limited accordingly. That is what happens when an economy grows! As the price goes up and supply is less, the manufacturers and retailers will need to expand their operation. That leads to further increase in employment and further increase in buying power. It's a positive feedback loop. That is why we call it stimulating the economy.
It is idiotic for someone to want to keep the price low by kicking the customers out!! It's unheard of! Of course, the price will stay low when fewer people wants to buy your products. AND guess what? The price will get even lower when NOBODY buys your goods and your goods rot on shelves. You will also have to scale back production and close down store because no one buys your products... Simply supply and demand! And you get a negative feedback loop that snowballs into a recession... frankly, I have never heard of people who hate and want to kick out their customers who buy their goods... that is simply boggles my mind...
I guess Beijing can give what the HK locals want... Close down the border with HK and limit the amount of Mainland Chinese traveling to HK. Let's see how the HK locals starts to cry when they and their friends and family begin to lose jobs. Even though the goods will be dirt cheap by that time, they still cannot afford to buy anything since they won't have money to buy with.