This is a secondary issue but not easily solved and has not yet been fully resolved. If LN is a viable solution for the bitcoin network, why hasn't it become popular yet?
While LN offers fast transaction speeds and low fees, it is not perfect and also has its drawbacks such as being quite complicated to use and centralization risks. Meanwhile, many people around the world have difficulty even accessing bitcoin, they can't even store it themselves (non-custodial wallets). Do you think they can easily use LN to pay their daily bills? I even believe that many of us have never used LN and don't know how to use it, let alone regular users.