I literally know hundreds of families with more kids than that and a spouse without any income, and I'm one of them. These are construction workers, small business owners (trades), union electricians and the like, engineers, accountants, etc. They live in modest homes in outer suburbs or rural areas. They/I live pretty frugally of course, but saying it's impossible or "hilarious" is simply wrong. I don't know what to tell you, except that its just not true.