In my opinion, there should be a seperation about place between tourist and local resident. = In my opinion, there should be a separation of place between tourists and local residents.
because of accommodation platform like airbnb, many local residence has been changed for tourists. = Because of accommodation platforms like Airbnb, many local residences have been changed for tourists.
Many resident was displaced from their homes. = Many residents were displaced from their homes.
To prevent this phenomenon, the government should be regulated expanding airbnb. = To prevent this phenomenon, the government should regulate the expansion of Airbnb.