If there's so much demand for no-kyc exchanges then why don't we see any decentralized finance platform advertising here? Instead we only see some wholly centralized closed source sites doing so. In the meantime anyone could go to 1inch.io or openocean.finance and access in USD billions worth of liquidity across dozens of different blockchains with varying degrees of trustlessness and none of them requiring KYC to access all of their liquidity.
The problem here is with the assets. Sure, there are decentralized non KYC platforms but you can't use Bitcoin with the mentioned platforms. You can use WBTC, but not bitcoin. You can also not use privacy-based coins like Monero. It's just Ethereum (or EVM) based tokens.
I'm pretty sure that whoever is interested in non KYC platforms and only wants to swap tokens, is already using the platforms you mentioned.