Do the Borg evolve? I think they must, but Star Trek scenariowriters simply never took their creation serious. If they had, I think both ST TNG and ST Voyager would've looked vastly different. The writers would have realized that StarFleet is actually the stupid, backward side, where as the Borg are cutting edge, innovative. The magic word: evolution (evolution).

 

It doesn't make sense for the Borg to have one Queen. If they were just one colony, yes. But the universum is huge, to say the very last and they ought to be all over the place. What do Star Trek characters always so about the Borg? "They adapt!" A stranded drone, left to itself, should have a crash program, simply telling to make do with whatever its present habitat offers. Seven of Nine clearly adapts wonderfully, but she is as Borg as ever.

 

If they writers had taken this serious, they would spotted a real Paradigm Shift. A move away from 2500 years old physics and (associated) philosophy, to biology, Darwin and evolution. To a future where computerchips aren't made, but grown, maybe on an actual tree. A future where energyweapons are old and dated, and people fight instead with, say, butterflies that set off a biochemical chain reaction to destroy the executive function in an entire nation, so that the agressor gets a whole population which cannot keep track of time or prioritize. Won't they happily take their medicine!

 

Borg which do evolve simply look different. They're not mechanical. Borg is short for cyborg: flesh + machine. We know evolution can be applied to everything. Machine isn't just an add-on to flesh, I guess it wouldn't even work if it was. They would look far more like creatures. Only because we can't come up with a credible alien, when the universe presents us with countless environments and the one tool needed to work it out.

 

(it's easy to defeat a Borg... use a flamethrower. Crude, but effective.)