Agreed, this is very annoying. Basement apartments shouldn't show up under "entire place". They may be called basement apartments, but it's just a basement with a family upstairs and almost always constant, barely muffled noise. Some listings won't even disclose this until the very bottom of the description, or sometimes not at all, and then I have to dig through reviews to see if anyone has remarked that it's actually a basement.
I've stayed in a lot of Airbnbs, and every basement apartment has been awful in a lot of different ways. Some are even more expensive than full apartments despite same area and similar quality and size. But if you're on a tight budget, the cheapest option between a hostel and hotel room or apartment probably is a basement apartment, so I suppose they're not entirely useless.
Would you describe a room in a hotel as an "entire place" or a "shared space"?
It's a shame airbnb has basically let professional real estate firms take over and completely trash it with listings that are nothing like what they show.
The last one I stayed at in Florida had a really bad ant problem and the place was filthy. They also had the AC set to turn off after 30 minutes. Keep in mind, it's in Florida and this was middle of summer.
While I'm ranting, why do they let basements or single floors of a shared house count as an 'entire place'? It's really weird to turn up and see you're actually in a basement in the owners house with their kids stomping around upstairs.