So you're claim of 4 countries isn't applicable to most people buying homes while on visa. Nobody on visa is buying a house in 1.5 years. People buy homes when they've been here for several years and have a permanent residency application in progress. So that's more like the last country where you've been.

Whole point of this thread is that it isn't unreasonable to have kids and family and a house and social life when you've lived somewhere for 10+ years. So any action on part of the government should at least give the space to get things in order or find alternatives. This is a fair and humane expectation.