Some are suggesting that the longer you have been away from Australia the less entitled you are to return?
Maybe there are other parts of Australians rights we can limit based on length of residence? How about we make it a rule you don't get uni and medicare until you have lived in Australia for 10 years? Why don't we cancel citizenship of people who have lived away from Australia for 20 years?
By the time Australia is open again for business the world would have already moved on. There is a fine line between keeping some people safe and causing untold distress to others.