Not at all. It was you and OP who asked for some kind of "killer app" from web3 as a way to justify its existence. My response is to say that this is an absurd ask.
Not only is absurd, it already exists, you just prefer to ignore it. I may agree that Bitcoin as a currency is a failed experiment, there is no denying that the possibility of sending value across borders is the killer app already.
"Oh, but BTC is volatile!". Yes, but I could in 2011 send money from the US to Brazil instantly without going through any international bank (buy in US exchange with USD, sell it in Brazilian exchanges in BRL, wire from the exchange to my brazilian bank) with minimal exposure to BTC volatility and at a lower cost than the fees charged by the banks.
But I am sure you want to ignore that, or find a reason to say that "it doesn't count". I can not fight your own prejudices.