SegWit was activated. Lightning is working. Mimble Wimble and Schnorr signatures are in development.

I understand big blockers are upset they didn’t get their way. They need to understand the reason big blocks don’t have consensus is that they increase propagation delays and propagation delays leads to centralization. Core devs are pursuing many alternative and intelligent scaling avenues.

Also, miners don’t determine consensus rules. If PoS works, another UASF initiative will arise and everyone running a node can decide the new PoW scheme. The fact that you don’t understand this leads me to believe you don’t have a good understanding of the technology yet.