Do not think we can compare with cancelling of Olympic games during second first war to those of today. Back then, ALL participating athletes were amateur (actually rule of the Games), so it may have disappointing to them but that was it.
These days, many (if not most) of the athletes are professional. ie, their sport is their work and their livelihood. In order to be selected for Olympics, many would have been preparing for the 2020/1 Games for 10 - 15 years. In several sports this may well be their one and only chance of selection at this level.
Many countries base their athlete grant system totally on results at Olympic Games. No Olympics will mean that many athletes will have no job, no livelihood, and a feeling that their lives have been a waste of time. We already have ample knowledge that there are severe mental health problems with retiring elite sportspeople - even amongst those who have achieved extremely highly. Cancelling these games will exacerbate this in many countries.
Most countries send their teams to separate pre-games training camps for anything up to a month prior to the games, so these will have been isolated in these places. Testing will, obviously, be in place, and then they will be moved to the Olympic Village. Will probably not be allowed out of there for the duration.
Yes, I think the Games should go ahead. Yes, I agree that foreign supporters and visitors and even local ones should not be permitted as spectators.
Japan will lose a lot of money with no spectators, as a great deal is made with the ticket sales, and everything else. So, it will just be the money from the tv companies.
Cannot see how a closed games is going to mean any of those athletes can bring anything back to their own countries, or -indeed - cause any further damage amongst the Japanese population.
I find it incredible that Japan did not go all out on a vaccination programme in order to help safeguard their citizens, particuarly in light of the fact that they knew these Games were due to be held.
Several test events are already being held in Tokyo to practice these closed games.
It wil happen, we will be able to ejoy it on our televisions, athletes will still be able to put themselves up against each other. It will an Olympics like no other.