Blockchain is indeed very useful. Everyone agrees to that and so there's no debate for it anyway. Bitcoin does have room to improve but not doing that is what people believe in.
False, it is the exact opposite. The benefits that Bitcoin has do not derive from the blockchain itself, but the properties of a decentralized and public permissionless network that only Bitcoin is. Blockchain as a technology has various applications in which it can be used, none of which are actually explored properly in the public blockchains -- launching scam projects is not a utility -- but it is a very small thing compared to what Bitcoin is. The real utility is Bitcoin, most of the rest is smoke and mirrors. Smart contracts that were supposed to revolutionize the world, meanwhile their best use case is automated launching of scam tokens.

2. Are ETF buyers adoption or just speculation?
Speculation. They all just want to get rich. They are just betting for bitcoin to grow bigger and it will.
Also false. a large portion of ETF buyers are more likely to be long term investors than 99.9% of the 3rd world pajeets that are just in Bitcoin to pillage and be parasites. Unlike smart and forward thinking people who have established the modern world, 3rd world pajeets do not give a single fuck about Bitcoin.
I always ignore people who say this. It’s just rage baiting, these people have no tech expertise and know nothing about blockchain technology or Bitcoin. They are just purposefully being antagonistic and hating. Don’t give these type of people your time of energy. They can all cry when Bitcoin is at $1,000,000.
Depends, you are right sometimes. However, there are many people who are not doing it to "rage bait" they are just that stupid. This very thread is filled with various answers from other individuals that are pure misinformation. The forum is in a sorry state, and the wider world even more so.