I don't have any doubt GrannyGravy. The economic system, as we know it could be changed out of all recognition.
Patriotism too. A virus is not another country we can fight with armies and sharing with countries may be the only way we move forward on this. Nativism will seem very out of place. We will - I so sincerely hope - have to have a compact with nurses, carers, doctors, cleaners, etc., etc., and pay them appropriately and care for them properly. Paying huge sums for "goods" may come to seem very strange.
Major shocks have been seen to lead to political change - that could be interesting and I am not going to guess what those changes might be. To be in a situation where this could be the future and think Brexit matters - will there be an EU to leave?; will we form another and different cohort of countries? - seems to have missed the breadth of what is happening.
However, I can sympathise with those who do want to bury their heads. I really don't want to think about what will happen in countries with a third world population.