GiveWell actually benchmarks their charity recommendations against direct cash transfers and will generally only recommend charities whose benefits are Nx cash for some N that I don't remember off the top of my head. I buy that lots of charities aren't effective, but some are!
That said I also think that longer term research and investment in things like infrastructure matters too and can't easily be measured as an RCT. GiveWell style giving is great and it's awesome that the evidence is so strong (and it's most of my charitable giving), but that doesn't mean other charities with less easily researched goals are bad necessarily.
Certainly charities exist that are ineffective, but there is very strong evidence that there exist charities that do enormous amounts of direct, targeted good.
givewell.org is probably the most prominent org recommended by many EAs that does and aggregates research on charitable interventions and shows with strong RCT evidence that a marginal charitable donation can save a life for between $3,000 and $5,500. This estimate has uncertainty, but there's extremely strong evidence that money to good charities like the ones GiveWell recommends massively improves people's lives.
GiveDirectly is another org that's much more straightforward - giving money directly to people in extreme poverty, with very low overheads. The evidence that that improves people's lives is very very strong (https://www.givedirectly.org/gdresearch/).
It absolutely makes sense to be concerned about "is my hypothetical charitable donation actually doing good", which is more or less a premise of the EA movement. But the answer seems to be "emphatically, yes, there are ways to donate money that do an enormous amount of good".
And I think it's interesting that it flags it as confidently AI generated. I also got a whiff of AI and I'm never sure how to take confirmation bias from AI detectors - though that said, I've gotten a whiff of AI before and had this detector say it's confidently human.
Reading this I kept waiting for the... point? I feel like the whole thing was more like saying "UDP is like a convertible because you can strap a tarp on top when it rains". Like... sure? But that tarp is going to be crappy compared to a real roof. And the idea that that tiny layer is "the best of both worlds" is frankly ridiculous to me.
That said I also think that longer term research and investment in things like infrastructure matters too and can't easily be measured as an RCT. GiveWell style giving is great and it's awesome that the evidence is so strong (and it's most of my charitable giving), but that doesn't mean other charities with less easily researched goals are bad necessarily.