While I am, generally speaking, in favour of the "small government" of low regulation, the issue here is one of some businesses (hotels and traditional landlord) having lots of regulations on safety & hygiene, etc, and others (AirBnB, etc) doing essentially the same job but not having to follow the same standards.
Same applies to the likes of Uber for taxis, trying to pretend they are not a taxi company and so should not have to vet drivers' criminal records, check their MOT/insurance status, etc, as they are "contractors".
On this forum the equivalent would be the professional qualifications, scheme membership, insurance, etc, that a professional electrician has, compared to dogy Dave DIY doing the job for a tenner, no test / no certification.
Society should decide on what is necessary and sufficient, and that should be applied uniformly.