"i think in Spain something like 10% of the country had a job purely because they were building houses that were not needed no such problem here."
Are you sure about this?
Why do you think government across the world promotes housing bubble till it finally blows?
which industry is the major job creator in australia post 2002? Mining creates not more than 4% of total jobs, manufacturing has been decreasing yoy, Housing and related periphery businesses are one of the bigger job creators in australia if not the biggest.
Its not just builder, bricklayer, tilers, electricians,painters, garderners etc but also reals estate agents, related lawyers, mortgage agents, etc Also periphery business like home decors, white goods/tv/furniture retailers.
