I've only ever seen bad-faith arguments about oracles. They set up the goal posts as if the goal was "You can trust absolutely nothing. You are born and will die trapped in The Matrix. You are in Descartes's proposal where everything you can possibly observe is a deception from a malicious demon. How do you set up a home-loan contract?" And then declare themselves clever by pointing out that any input to the system requires trusting that input.

That's not the goal of trustless contracts.

The goal is that some resident of an oppressive nation can get a loan without being denied all access to finance at the whim of government-controlled bank. Can't trust your region's banks? Crypto is a wild land. But, it's a better alternative for billions of people.

It's easy to say that crypto is useless when you are in the top 2% of global wealth, a well-regulated banking system is scrambling to serve you, your government doesn't frequently confiscate your assets or inflate your hard-earned money to worthlessness.

And, it's easy to complain that crypto didn't magically spring from bottom-up grass-roots overnight, solving all financial problems by the poor for the poor in a single step before enriching a bunch of already-rich tech bros.

Creating a new global financial system from scratch is a lot of work. It requires a lot of investment, a lot of losses, a lot of hard-earned lessons. Blockchains have been demonstrating utility in that endeavor for 15 years. Growing from nothing to being valued higher than the global market of silver in that time.

Maybe "global financial system" is a small number of uses. But, it's a small number of rather large, rather important uses.