Re: Do you accept that Voyager "killed" the Borg as a major Trek enemy
The writers decide if the Borg appear on the show or don't. And from a narrative point of view it would have been a wise decision to drop the Borg after "Dark Frontier" instead of wearing them out until Borg episodes become almost as boring as Kazon episodes. There weren't any Borg in Seasons 1 and 2, so it should be easy to let them disappear from Season 6 and 7 as well.
The Borg like the Romans are conquers.I wouldn't want to miss "Scorpion" or "Dark Frontier", but episodes like "Unimatrix Zero" and "Endgame" were just too much.
They should have dropped the Borg after "Dark Frontier" IMHO. There would have been a good explanation for it: At the end of "Dark Frontier", Voyager had traveled another 20,000 light-years with the help of a Borg transwarp conduit. This would have been a good opportunity to say that Voyager had left Borg space behind once and for all with that jump. And then a new enemy could have been created for Seasons 6 and 7.
Even leaving behind Borg space, they'd still be Borg ships scouting for new conquests. They couldn't expand their empire or be a threat to anybody if they weren't out exploring, just like the Federation. It's like saying no Starfleet ship can leave Earth's orbit. So how do you recuit?
The writers decide if the Borg appear on the show or don't. And from a narrative point of view it would have been a wise decision to drop the Borg after "Dark Frontier" instead of wearing them out until Borg episodes become almost as boring as Kazon episodes. There weren't any Borg in Seasons 1 and 2, so it should be easy to let them disappear from Season 6 and 7 as well.