I would agree, if space exploration was initiated under better terms than the Cold War. We started to send rockets into space in order to become better with ann

I would agree, if space exploration was initiated under better terms than the Cold War. We started to send rockets into space in order to become better with annihilation of the opponent. We were really lucky that it turned into something we have today. But that will not last. Privatization of space travel is already underway. That bears the question: Who benefits? I am afraid that if we invest in space exploration and colonization, we would shift priorities from saving this world to escaping it. Only a few would be able to escape it - those who have the resources. (It is kind of what the movie Interstellar is about.) We need to save this world first, before we can allow ourself to "infect" other worlds. If we cannot sustain on this planet, e.g. stop global warming in the next years, we are doomed and it becomes impossible to even think about shooting a single human into space again. If we need to test things in space for that, I'm fine with that. But lets not lose track of our short term problems.