I do think that bitcoin lacks on some aspects, first of all its feature of being anonymous, how cam you expect that the global cryptocurrency would be allowed go this if it ever become the global crypto, and I akso think that because of this people can secretly make. illegal transactions
You've heard of these things called banknotes, right? Is your name attached to each transaction you make with those? Is something preventing people from secretly making illegal transactions with a stack of cash? How would that ever be allowed to become a global norm? I assure you, the world already knows how to cope with anonymous money. We've had it for some time.
However, Bitcoin
isn't anonymous. Bitcoin is pseudonymous, tied to addresses and recorded publicly for all to see. Considerably less anonymous than cash is.
Yet another "expert" who even don't know how bitcoin works at all. He don't even why Bitcoin use PoW as it's protocol consensus & difference between required mining electricity and electricity used to mine.
Furthermore, Bitcoin (and most cryptocurrency without complex feature) can be understood and used easier just by make a wallet with good UI/UX and open-source

Bingo. Anyone who doesn't understand it naturally assumes it'll be easy to make something "better". But the fact is, they always have a poor notion of what "better" actually looks like. No doubt they'll make a walled-garden-currency, try to pass it off as a cryptocurrency with some flashy marketing and some benighted fools might think that's great for a while, but eventually it'll go wrong because all centralised systems are prone to corruption. I'm looking forward to the spectacle. All the while,
real crypto will be getting stronger.
We know they're wasting their time, they just haven't caught on yet.