I could not possibly disagree more.
Conferences are almost always a split of local and non-local attendees. Forcing conferences to be exclusively non-local attendees makes zero sense. It would be even more expensive, in absolute dollars and environmental cost, to have everyone travel to the middle of Nebraska.
I know it's not your intent, but your stance here reeks of elistism, xenophobia, and othering. Extrapolating your worldview I don't know why a country hotel would, or even should, be accommodating.
> don't organise conferences in places which are full of tourists already.
This is absurd. Conferences are about people. Places with a lot of people will naturally have those people come together for events. Things that make a place attractive to live can also make it an attractive place to visit.
Travel is so expensive it's almost crazy NOT to make the most out of your trip. Adding a day or two of tourism to a multi-day work or education trip is more than reasonable.