"For the betterment of mankind....."

As Captain Picard describes the somewhat utopian 24th century reality to the 21st century passenger on his ship, it's hard to imagine anything better.  After the "First Contact," mankind had become united in a way they never had been before after they realized that they were one of many inhabitants of the universe.  Poverty, and even money itself, has disappeared as humans as a race collaborate with one another to explore the galaxy.  The characters work incredibly hard to make sure that that this unifying event is not prevented by the Borg.  Free from internal competition, according to Picard, humans are now free to work for the betterment of mankind.  This sounds like a noble objective, but when you back up, I think the lines between the good guys and the bad guys get a little blurrier.  According to the Borg, their goal is to assimilate all other races into their collective conscious, which is probably for the benefit of "Borg-kind." It's pretty clear in the movie that the people are the good guys and the Borg are the bad guys, but what makes them different? In a universe where the Borg are an intelligent (and partly organic) force in their own right, why should humans need to destroy them? I think we should hope that in the real future, humans will always have control over technology. We can't assume that the human "good guys" will remain dominant over the artificially intelligent "bad guys".