I probably can. the scaling of an application is not directly linked to the framework, but to the set of tools used in it, such as hosting, database. so I tell you with certainty that yes, I can
So, you seem to have made up your mind. Then why do you ask the question here on HN? What do you hope to gain from that? Are you looking for comments to tell you how awesome you are? Must be quite the bummer not to get them.
frameworks only help us to be more productive in terms of time and security. if you have enough knowledge of a particular language, you can be very fast and secure in your applications.
Of course you _can_ build great and secure systems without any frameworks. But do you _want_ to do that? If I had to build everything from scratch for which I'm using a framework or library right now then I would need _significantly_ longer which would place me and my team at a clear disadvantage against the competition.
There are tradeoffs for sure but you can't have everything all at once.