For those who haven't understand yet how lightning network work, you can watch this video, Bitcoin's Lightning Network, Simply Explained!.
bitcoin has no scalability issue
bitcoin has a developer insisted stiffling limit that hinders scalability
Very disingenuous of you. The Core developers will not give up decentralization for larger transaction throughput. Plus a hard fork to bigger blocks, just to make a minority in the community happy, is risky and dangerous to the network.
bitcoin has no fee issue
bitcoin has a developer insisted fee war that hinders bitcoin onchain spending opertunity
You're right. Because will evertually support the miners. Don't believe me? Watch Bitcoin Cash ABC and SV's next halvings. How will those networks support their miners with halved block rewards every 4 years, and almost zero fees?
They will need to follow Bitcoin's model if they are to be successful.