10 bitcoin is only 1 million dollars recently. You keep ignoring the question. How long would it take to get your stack to a size where you can spend bitcoin with proper opsec? It's gunna take forever to get to that point doing dca over robosats or whatever
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I just said if you have a million dollars to drop you would do it p2p. It's a ridiculous hypothetical. Who needs a million dollars to spend on something illegal? If you do, you're probably better off using cash in a suitcase. A million dollars isn't that much in 100 bills.
Go to you bank and ask them to withdraw 1 million dollars in cash ^^