I stopped watching football when the World Cup went to Qatar and I haven't watched any since, it turns my stomach now.
>> Fewer and fewer cities want to splash hundreds of millions on building stadiums that go to rust in a few years
To me, this is the most important reform the IOC needs -- ensuring that any infrastructure built for a games has an ironclad post-games plan.
If that requires multiple cities, then multiple cities it is.
Atlanta 1996 is a solid example of it done right. Don't budget, spread facilities around, and have a reuse plan. Most of the infrastructure is still in use today. https://en.m.wikipedia.org/wiki/1996_Summer_Olympics#Venues_...
Typically, this goes off the rails when governments bid for games (Sochi, Beijing) and then drastically (10x norms!) the budget for minimal gains.
And it's not obvious from the venue list for Atlanta, but Centennial Olympic Stadium is now on its second round of reuse - it was reconfigured for the Atlanta Braves baseball team after the Olympics, and now Georgia State uses it for football after the Braves moved out to the suburbs.
I'm thinking about going to the next Olympics in LA because I want to go back to LA and because LA has always been sane about it: the 1984 Olympics made money because they didn't build an Olympic village -- and they could talk terms to the IOC because no city wanted to host it after Munich.
[1] I remember standing in front of the New Yorker hotel across from Madison Square Garden and some Londoners were complaining that NYC wasn't crowded enough. Crowds in London are intimidating under normal conditions.