> "Didn’t get adopted for payments at a satisfactory rate compared to 10 years ago."
Dafuq you talking about? Bitcoin is winning all the way to the chain.
Sorry if adoption isn't up to your undefined standards, but it's quite possible to live on Bitcoin these days and the trajectory is clearly upwards.
Not scaling or adding smart contracts is a feature not a bug. Those things are added in L2's where they belong, keeping the base layer simple and secure. This is why Bitcoin holds its value, and will continue to do so.
As for quantum: 

BIP 360: Pay to Quantum Resistant Hash
BIP 360: Pay-to-Tapscript-Hash (P2TSH)