“They've now killed close to twice as many kids from the vaccine as have died from COVID.”

 https://www.politifact.com/factchecks/2021/dec/21/steve-kirsch/contorted-claim-children-killed-covid-19-vaccines-/

Nine deaths of adults have been linked to a causal relationship between the Johnson & Johnson COVID-19 vaccine and TTS, a rare event that causes blood clots with low platelets. But there are no confirmed deaths involving children linked to the vaccines.

The latest tally of children who have died with COVID-19 is 771.