They're pirating your emotional DNA and they are going to imprison your essence in their digital gulag.

They could be trying to download everyone's emotional/intellectual DNA, so as to replicate you into their simulation, and the jab is simply the modem installation.

Perhaps a massive, earth-destroying catastrophe is heading our way and they seek to preserve our humanity. I doubt they are that benevolent. Maybe they just want to be God in their digital gulag.