Find someone to sell you Monero. Give them $1mm and your address. Receive Monero.

Alternatively, buy bitcoin through your bank. Use it to buy monero on an exchange.

Alternatively, wait 6-9 months and exchange your btc with xmr using an atomic swap, on-chain.

> Find someone to sell you Monero. Give them $1mm and your address. Receive Monero.

How do you ensure this person does not know who you are, whilst also ensuring they don't steal your $1m?

> Alternatively, buy bitcoin through your bank. Use it to buy monero on an exchange.

Difficult to do this anonymously.

Maybe some sort of multisig with a trusted escrow service involved? But then at that point could the escrow be liable?

I'm not sure how you are going to stay anonymous buying anything with a bank card.

Using cash then localmoneros or bisq would be fine.

This answer is completely grounded in fact, so I vouched for it. Even without the bank card number itself, many places used tokenized versions of the card number for tracking purposes.