I find this viewpoint fascinating. Like arguing that trying to put out a burning building will hurt poor people trying to keep warm.
The housing market as a whole is the problem, one which AirBnB is exacerbating. That it locally enriches those renters able to find people willing to rent out their homes – which I’m guessing is disproportionately going to be people without elderly family members & kids – doesn’t mean it isn’t detrimental to the housing market as a whole, particularly at the lower end, and to everyone who rents.