Maybe not "us all". The quoted researchers may want to take a look at the research being done by George Webb and Mark Kulacz, who discovered much the same activities over two years ago. Mr Webb has already written at least one short book about it.

Mr Kulacz has an interesting theory in that the proles, rather than being killed, are being set up to become "lab monkeys" or "lab mice" for experimentation by those in power. After all, lab monkeys aren't cheap and although animal testing is useful, no animal corresponds exactly with the human genome. This push toward homogenizing our food by eliminating local food sources and restricting movement via "green" directives like ULEZ and "15-minute cities" as well as various attempts to control human breeding, makes it seem like those in power plan to put the proles in "cages" and feed the proles all the same food in an attempt to eliminate variance and make experimental data more accurate. Of course, those in power may feel that 8 billion lab monkeys aren't necessary and pose a problem for the push toward homogeneity, and thus kill off those not useful for experimentation.