The most realistic relative value that BTC could get to (related to today's USD value)

I'm curious to hear your thoughts on the potential upper limit of Bitcoin's value in today's USD equivalent.

I've read of people predicting BTC could eventually get to over $3 Million or more eventually and I've been considering the total amount of liquid money worldwide, which is estimated to be under $50 trillion ($48 trillion). Based on this, I've been thinking that Bitcoin's combined value may not be able to exceed $50 trillion, which would be roughly 2.38 million per Bitcoin (in today's USD equivalent).

This is because it seems to me that Bitcoin can only replace liquid money and may not be able to replace assets like real estate, stocks, and other non-liquid forms of wealth. Even gold, which has uses beyond being a store of value, is likely to retain at least SOME of its value as an asset.

So, does this mean that Bitcoin's total value may not surpass 2.38 million? I'd love to hear your insights and opinions on this topic!

Note: I do realize that in some ways it can increase in value due to deflationary variables like lost keys, etc, so there has to be a little leeway for that, but if BTC suddenly really replaced all liquid money worldwide, what would be a realistic valuation in today's USD equivalent? If it would be more than the value of the total worldwide money supply (more than $50 Trillion, and thus $2.38 Million per BTC), please explain any rationales for why people think it could possibly get to $3 million or more when there isn't even that much liquid money value in the entire world unless you count Assets, which will still exist and have value. Thanks!

(Sidenote: I've been DCA'ing for a while and consider myself a Bitcoin Maximalist, no I am not interested in DM's of special offers to increase my investment or anything)