If no one is adopting those things how will it scale bitcoin?

Any crypto can create a lightning-like network. Lightning isn't unique to bitcoin. It just isn't necessary on other blockchains because they didn't artificially handicap their blocksize. I still don't think Bitcoin should change (only because it would be devastating to confidence), but I think it has been overly and detrimentally conservative when it comes to blocksize rate of adoption VS moore's law + protocol scalability improvements.

Also, what is lightning really scaling? Scaling at all costs? It has completely different properties than base layer transactions. Many, many, downsides that don't make sense imo for the original goals of Bitcoin. I can go more into that if you'd like.

A network that is trying to scale to the world is useless if it has unresolvable critical security flaws
https://lists.linuxfoundation.org/pipermail/lightning-dev/2023-October/004154.html

Lastly, none of what I said matters because lightning is not a real scaling solution anyway
https://www.truthcoin.info/blog/lightning-limitations