I don’t have all the answers. I won’t pretend I do. If someone cannot afford a house then it is what it is. Turning yourself into a slave is a bad approach to home ownership. The world would continue just fine if we didn’t have ways to borrow money. Other options exist. Borrowing money has only cause the housing affordability issue to get worse, not better.
You could borrow money from family and friend without involving banks. Banks are corrupt.