There was never an issue with figuring out the way to scale a blockchain, there was just a debate on which solution we will implement.
That debate resulted in a fork as people couldn't agree.

I am glad that you have another solution, but this is a 'problem' that even Satoshi gave a simple solution for.
It is a kinda of a virtual problem, not a natural one. The block limit was purposely implemented for spam protection.
So it is very simple if you just want to solve it simplest and quickest way possible, but off-chain solution ended up being followed by most.