As a counterpoint: From the perspective of the Bitcoin network, Bitcoin is not inherently deflationary as long as mining continues to introduce new coins. Mining rewards do drop over time, but new Bitcoin will continue to be generated until the year ~2140.

I think the view of Bitcoin being deflationary now is based on its increasing/volatile value against other currencies which does encourage people to hold with the expectation that they can sell for more in the future. I'd argue that this is price discovery and not deflation. If it remains where it is now, then I agree that it will just be another casino. If the value stabilizes eventually, then it does offer some benefits, especially in countries where the local currency is a less reliable way to hold money.

Disclosure: I do hold some crypto and obviously would prefer it to go up but it won't change my life. I just think it's an interesting experiment at the end of the day.