I think if that were the case the Chinese wouldn't be so big into it. Realistically speaking, crypto is a numbered Swiss bank account whose interest rates are radically unpredictable. I don't think this is an answer. I think this demonstrates that we don't know enough to begin to ask the question.It seems the only thing that matters is its value in fiat.
Presume the sole purpose of Bitcoin is to transact off the record. It is solely a marker for black market transactions. If 10% of all black market transactions were to transact in BTC, and all 21 million BTC were used to do that transacting, then 1 BTC has a nominal value of $28,000. If 100% of all black market transactions, 1 BTC has a nominal value of $285,000. At a circulating supply of 17 million BTC, worth $15,000 each, bitcoin only has the capacity to cover 2% of the black market.