Stop repeating this nonsense. They are lies. It is very easy to use and it is very similar to the normal crypto experience.
Managing channels? Most users don't need to do anything after opening 1 good channel and that is assuming they use a manually managed wallet.
Managing liquidity ~= managing wallet balances for traditional L1 use. How do people even use this as an argument?
Why is this a nonsense or a lie? Prove me wrong.
I explained it in the middle part of the post.
Let someone sit on a computer (someone not tech-savvy), give them a test Electrum wallet and ask them to make a transaction via Lighting Network.
There is a reason why Lighting Network isn't adopted and widespread, isn't it true? It has been around for 7 years. In case of on-chain Bitcoin transaction, you simply open the wallet, paste address, type amount, click on send and that's it, it's extremely intuitive while LN isn't that intuitive and needs some tutorial/guidence. It might be easy for you and me but we are a tiny percentage, there are lots of people who find it hard to use. If it was easy, as I said, it would be adopted and widely used and people wouldn't look for altcoins to make a transaction.
The Electcrum UI is blame, not LN. Using LN on many mobile wallets is as easy as using any L1 chain or at times even easier. Whatever step you think is complicated or extra, a version of this step exists when you are onboarding somebody to crypto for the first time. Onboarding someone first time to Bitcoin/other L1 chains or directly to LN is equally difficult in terms of complexity to use. Minimal difference. There are wallets where all you need to do to start using LN is to deposit Bitcoin. It is hard if your brain is an empty shell.

The adoption thing does not provide points in favor of your argument. You are simplifying a complex topic.