Seems like a bit reductionist to liken concern/acknowledgement that "free market" dynamics may not necessarily be desirable in every case to support for Soviet-style regulation.
Airbnb has caused increase in local rent by removing the available to-let properties from the market in London. Considering that there is already an increasing wealth-gap problem, it's hard to stomach something that is exacerbating the problem and reducing social-mobility in the name of free-market dynamics.
Highly desirable places also have many second-homes as well. In Hawaii, some neighborhoods are only 20% occupied because most of the owners actually live somewhere else.
I am sure second-homes also drive up prices (In Vancouver they even have a special tax for empty houses).
Airbnb has caused increase in local rent by removing the available to-let properties from the market in London. Considering that there is already an increasing wealth-gap problem, it's hard to stomach something that is exacerbating the problem and reducing social-mobility in the name of free-market dynamics.