Wow. It's kind of hilarious that Patrick Stewart thinks humans shouldn't be allowed to explore space because they are a 'Dangerously savage child race'.
I want so bad now to hear a rebuttal from John DeLancie.
An explorer who is assigned to a position where he is humanity's representative to new worlds you can argue has the right to make sweeping statements about the virtue of the race, but playing such an explorer on television does not qualify you to make the same sweeping statements. I may agree that the resources necessary to go to other planets at the moment are better spent on the ridiculous about of conflict and income disparity we have now. So phrase it as a 'Best use of resources' argument, don't phrase it in such an obnoxiously snobbish and judgmental way.
'Not having perfected the race' is no excuse not to explore outward.
He didn't say that we shouldn't be "allowed" to explore space, not did he say that humanity would have to be perfect before heading into space. You are mis-characterizing his statement. A better paraphrase would be that we are not ready to go into space.
One would hope that devoting more resources to science and expanding our knowledge would act as a unifying force, however slowly. And I am in favor of diverting most of the US military budget into science and social development. At this point, however, we would carry all our political divisions with us into space. Proxy wars are fought on earth, and under current conditions, would be extended into space.