What makes you think he was talking about covid in the context of engineered bioweapons?
He said “there are papers out there that show the racial or ethnic differential and impact.”
You provided one such paper that shows that there are differences in how covid impacted different communities. Whether that’s due to obesity rates, socioeconomic status or healthcare access.
"Kennedy later posted a video statement on Sunday, saying in part: “Nobody has suggested that these were deliberately engineered changes and I certainly don’t believe that they were deliberately engineered,”