Earlier quoted context omitted.
A distilled form: Tourism is not a special case. The same issue applies to tons of activities. We either limit these activities to a privileged few, or the activities cease to exist in their original form. Everyone loses in the latter case.
I think this is just wrong and some kind of modern malthusianism. IMO the logical outcome would be that the most trendy destinations will get more expensive, thus overpricing many tourists and regulating itself, and that it will open a new opportunity for many places which are not today super touristic. SO everybody will be a tourist, just not at the same place. It is already happening actually, you have much more to…
Running a lottery = limiting to the privileged (lucky) few.
Creating a reserve / national park / protected area = limiting access to the privileged (science-related, or just well-connected) few.
There's no way that everyone who would not mind to visit a carnival in Venice could fit the city, if getting there was free and instant. This is a fact of life, and I personally am fine with it. People have different priorities, so let them (us) choose what group of limited few we can concentrate on entering.
For what I cannot afford to access, VR helmets exist.