Sounds like Q is suggesting that our DNA is being manipulated to prevent ascension of consciousness. Meaning the public have been biologically altered to keep them from waking up.
Q doesn’t clarify exactly how, but we can assume mRNA injections are a likely candidate.
We also know from the Biolab research, the US advancements in nanotechnology and microbiology grant the ability to create genome specific pathogens capable of nationalistic and ethnic cleansing.