PS. I know anyone can fork Bitcoin and make changes but starting a new PoW chain with no premine, no dev-tax etc. would be very hard to secure if not impossible today, maybe with merged mining it could survive.
You don't need to start a brand new chain. Hardforking implies that you'll have the exact same chain, until date X, when your rules will start being enforced. Bitcoin Cash is an example.
My logic is not flawed, your logic involves a lot of praying and I rather have a scalable chain than chain that lives on prayers.
A scalable blockchain is one where payments occur in second layers, not in the main layer. If you think that by simply rising the block size, you can solve the scalability problem, then you'll have to explain to me why Bitcoin Cash and numerous of other altcoins were such terrible failures.