Ethereum? That coin Vitalik dumped in 2017 when it was peaking? Google this. He sold 130k ETH in 2017. If you were buying back then chances are you're holding Vitalik's bag and he's got 100m USD in the bank thanks to his believers (suckers).
Sure you can build on it but in the end it's still going to be a coin with no cap that someone created to make fiat money. It's not there to be a revolutionary decentralized private bank that you can hold in your pocket. It's there because ETH foundation wants to fill their pockets with fiat money at your expense.