We also need to account for BTC lost in dust and BTC lost forever which combined is a few million too. I agree there is very little liquidity and I don't exactly see that as a bad thing, it will always be that way and continue as the inflation decreases pushing it into higher price points until the liquidity exchanged has very little effect on the price and we're having things like 1% - 3% changes as our regular ebbs and flows
Lol until then i'll be stacking my sats and being part of the long term HODL