There aren't 2 "Bitcoin", but 2 cryptocurrency with different name which is Bitcoin and Bitcoin Cash. While i disagree with Bitcoin Cash scaling solution & roadmap, people/services/exchange shouldn't misleading Bitcoin with Bitcoin Cash, especially when users buy Bitcoin but got Bitcoin Cash and vice versa.
Well, most people actually call Bitcoin Core just Bitcoin but there are other people out there calling Bitcoin Cash just Bitcoin, decentralization makes impossible to have consensus amoung every one of us but when I say there are 2 Bitcoins I mean 2 coins with the code written by Satoshi (althought BTC was modified with Segwit). Do you really support the LN?
If your answer is Yes, please watch this video: https://www.youtube.com/watch?v=k14EDcB-DcE
It's true that people confuse between Bitcoin Core, Bitcoin Cash and Bitcoin term. However, bitcoin is written by many people, not only Satoshi.
I still have doubt about LN, but i've seen that video sometimes ago and i think it's misleading since they intentionally left some important info such as Timelock contract and you don't have to connect to channel which take fees.
But i agree with others bitcoin technology or improvement such as Schnorr Multisig(MuSig) and Merklized-abstract-syntax-tree (MAST). I disagree with Bitcoin Cash where increasing block size is used as main scaling solution.