How is it killing Bitcoin? Any arguments, or just trolling? There are at least two alternatives to the Blockstream implementation you can choose from, and LN has the potential to become better cash than Bitcoin (or any hard fork so far) alone could have become, since not every transaction has to be recorded on the blockchain.
Bitcoin is (was) peer-to-peer digital cash, all it took was Greg Maxwell hijacking the github repo and capping the blocksize to kill the project.
The idea lives on in other projects but the Bitcoin project died with the blockstream takeover.