Do not increase the 1MB block, because it will save users money - this is a BIG LIE from the Core developer.
[Citation needed]
4.The fact that the node will be held by someone else, there is nothing wrong. 99% of users work this way now. Because a non-mining node can't harm the user in any way. After all, the user has the private keys. This is in any case better than working through Coinbase.
Unless the protocol itself is changed where it's possible to move coin without private key.
Do you forget side-chain, off-chain and tokenization?
"Do not increase the block, because this leads to centralization. "
and
"Go to another sidechain, or tokens on another blockchain, where there will be millions of transactions, which means there will be large blocks, but this will not be centralization." Facepalm

What i meant is combining all of them (increase block size, side-chain, off-chain and tokenization) and let user choose what they want.