Poison 4 Everyone

It may be that they're simply poisoning everyone.
The injected blame "covid" and the un-injected blame the injections.
Meanwhile we never get to the bottom of it.

They may be using mosquitoes and/or injected people to spread the poison.
They maybe be using some other technology entirely that we don't know about or aren't suspecting.

Gay Frogs

There's a significant possibility that the scamdemic injections cause reproductive system modifications that produce faggots, and that's why they went full-steam-ahead with the tranny worship and tranny surgery for kids, right after the injections were deployed on kids.

They knew they had initiated the creation of a generation of faggots.

You may recall the first X-Men movie, in which Magneto (played by a faggot) was doing essentially exactly this, though thinly veiled.
Just swap the word 'mutant' with the word 'faggot'.

Critical Thinker Extermination

The most terrifying possibility is that the injected are actually the only ones protected against some toxin they're getting ready to release (scamdemic #2) that will kill everyone except the mindlessly obedient who got injected.
All critical thinkers dead and replaced with border hoppers & bots.