Governmental space agencies all suffer from classical "governmental myopia" and private space tourism companies only want to make money. But it is actually possible that people who want space exploration and space colonization to happen can fund such nonprofit private space projects on their own initiative. Another way of getting money for the necessary research&design is one-issue parties focused ONLY on funding space travel and colonization research and design (and of course stop governmental attempts to restrict space travel, eg. promote the abolition of the Japanese maximally two spacelaunghes per year law).