A lot of people like trading, just look at Robinhood. It would be good if an app like Robinhood existed that ensured cryptographic guardrails to prevent the platform owners from lying about their solvency.
If you look at crypto's daily price action, the majority of it is attributable to trading and speculation. I think this is pretty common knowledge.
If you feel stocks and equities is gambling, then you might also feel that this sector of crypto is gambling.
But there are other sectors of crypto that don't register on this price graph, maybe because price is not the only metric of their success, or because their volume is lower. Smart contracts, non custodial wallets, ENS, trustless payments, DEXes like Uniswap, are all interesting and valid use cases of crypto and blockchain tech.