Trust?
Fraud and theft are rampant. The industry is comically out of control and needs regulation to have credibility.
That's true, but that is not an issue with the tech. It's people designing their projects for the purpose of funneling money in to their pockets. You can read the smart contract and decide whether it is safe or not. If you cannot read the smart contract then here are auditors who check these things and categorsie dapps from high to low risk.
Efficiency?
Transfer fees exceed banking transfer fees.
Having middle men is more efficient than peer to peer.
It takes 3 business days for transfers and they cost over $10 for international transfers. Whereas I can send billions, instantaneously and for less than 20c.
Sorry, but you will have to substantiate your claim that having a middle man makes it more efficient than P2P. In a network P2P is always faster and more efficient than having a server in the middle.
Centralization?
The market price is manipulated by whales and Tethers that it is hard to claim that it is beyond manipulation. In comparison, the central bank acts in a manner generally to support the economy.
If you hold the keys you hold total control over the assets. All the stories of people losing their assets is because they gave their keys to a centralised exchange, so they lost control of their assets. The price is determined by the market, but that has nothing to do with the tech though.
You still haven't answered my question of where is it used heavily legitimately or why 90%+ of transactions are fake. You just throw vague concepts at me without answering my question.
Like I said, there are projects that were designed to funnel money from retail into their pockets, but there are serious ones who don't and do not have fake transactions on chain. All this can be seen in the chain's explorer, nothing is hidden.
I know [REDACTED] and [REDACTED] are used by governments, such as the UK and Chinese govs and by some massive companies/institutions. We are still early and the tech is still being developed, they keep a lot secrete and under NCNDAs.
If you wanna miss out it's up to yoU. I am not here to educate or convince you. DYOR.