I mean, I hope you are right, and that the vast majority of tokens die off and we see fewer and fewer ICOs being launched since 99% of them are outright scams.
Having said that, that doesn't necessarily mean it's a bad time to launch a DEX. One of the main use cases for a DEX is to provide an anonymous/semi-anonymous on and off ramp for fiat, and to bypass invasive KYC procedures to be able to buy or sell crypto for fiat. You can already trade from BTC to ETH to useless tokens and back again on centralized exchanges without having to perform KYC, so the only thing a DEX adds here is not having to trust the exchange to hold your coins. Obviously less trust is a good thing, but DEXs come in to their own to allow fiat trading without KYC.
This doesn't change my opinion that this particular DEX backed my McAfee will almost certainly turn out to be complete trash or even a scam, but I'd still like to see more DEXs being launched and more options to trade fiat to BTC without KYC.
I agree here,,, there is never a bad time to launch a DEX, since we can never have enough competition. But I think we need a lot of thinking behind all these different DEXs, like cannot they find a way to work with each other cross platform and somehow, cross wallet and cross blockchain?
I would love to use a DEX and everybody else would too but if there was a simple way for me to say I have X token and would like B token, and all DEXs can find me. That would be my dream!