Creates the duality of the Borg, they are a monstrosity whole at the same time they are all victims. Every single Borg are just like Picard when he is assimilated. Forced by the collective to do monstrous things against their will.
They are all simultaneous guilty and all innocent
Picard learning that you can’t condemn Hugh without condemning himself. That Hugh separate from the collective is just an innocent individual
I do have a few issues how they resolve this issue
First Beverley was a little annoying at the beginning. They are collective t(hence there is no innocent bystanders) trying to conquer all life and refuse to negotiate. It’s basically kill or be killed when it comes with the Borg from what they know about them
Second I believe the plan that they could destroy the entire Borg collective to be unwise. It does weaken the Borg that people can infect an individual Borg and destroy the entire collective. By escalating the solution complicates the issue to much . Even if it is immoral to infect Hugh against his views, the question of whether the end justify the mean becomes important. This individual vs eliminating the biggest threat to not just Federation life but all sentient life in the galaxy. If this could destroy the Borg collective then the episode really needs to explore the issue of “The needs of the many outweigh the needs of the few and the one” which wasn’t really debated in the episode. If they are not willing to do this then they shouldn’t raise the stakes of the solution. They really should restrict it to destroying a single ship rather then the entire collective.
Third issue is that when Hugh learnt the value of individuality and recognise the immorality of the Borg mission. He was willing to sacrifice his individuality and freedom to save Geordi and the Enterprise.
There was a massive missed opportunity for drama
So why doesn’t the crew confess about their plans and give Hugh the choice to save lives by voluntary introduce the virus and destroy the collective.
I believe they should confess their plans. Hugh contemplates but refuse but not because he see it immoral to wipe out the borg. However he recognise that all the Borg had the potential for the same individuality as himself and he wants the liberate all Borg from the collective.
Instead he repurpose the virus to sever the collective rather than killing all the Borg. This directly leads to Descent
This leads to the last complaint. It is completely illogical that “individuality” from Hugh would disrupt the collective. If they were able to assimilate Picard and other individuals without causing harm to the collective them giving a borg drone individuality (even if they were part of the collective for the entire life) shouldn’t cause any harm. Repurposing the virus to give sever the collective instead of killing the borg is more logical explanation.
I also think that this was a miss opportunity in First Contact. Thematically the movie was setting up that Picard was out for revenge, he was criticised by Lily for not even trying to rescue his crew members instead of him just killing the individual borg and having his revenge. The whole critique of Picard out for revenge should have led to Picard liberating the collective and to see that even the Borg queen is a victim. By severing the collective he could rescue all the drones including the queen instead of revenge of murdering all the Borg drone. That if the crew risk their lives to rescue Picard from the collective that he should give the same courtesy to try the same thing to risk his life to save the crew who were assimilated