Many people say Bitcoin has no value

If I open a bank, there is no threshold for opening an account, international transfers arrive in 10 minutes, there is no censorship, and there is an upper limit on the currency issued, the money you deposit in the bank will never be diluted.

May I ask what the market value of this bank will be after it goes public?

The current market value of Bitcoin is US$800 billion, which is too conservative.