Yes, they are actively injecting less liquidity than they were before which is my original point?
Wouldn't removing liquidity be actually selling holdings?
EDIT: Maybe this helps - you're taking for granted that the US Treasury auctions an increasingly large amount of Treasuries to cover an increasingly large amount of debt, but The Fed doesn't create that debt, that's a separate phenomenon. If the government balanced its budget for a year, does that create liquidity?