Earlier quoted context omitted.
It is a failure because BTC has pivoted away from the Bitcoin whitepaper (p2p ecash), limited its blocksize and has taken the path of this strange "digital store of value" (lol). BTC's activity rose gradually up to 2017, and then topped off at 1MB and even dropped. [1] If Bitcoin's momentum hadn't been dissolved, it wouldn't require people to be forced by State to accept it. [1] https://bitinfocharts.com/comparison/s…
Growth continued on second layers: Bitcoin's tx count on the Lightning Network has doubled over the last year. Forks of Bitcoin who attempted to scale by increasing the blocksize all failed and are practically dead (Bitcoin SV, Bitcoin Gold, Bitcoin Cash, eCash, Bitcoin ABC, ...).
Being able to send and receive from anyone is growth, lightning isn't on the bitcoin chain until it gets synchronized.
If I give you a bitcoin address, you can't send anything to me with the lightning network.
It's unnecessary nonsense because bitcoin is pointlessly crippled. Every other cryptocurrency has plenty of throughput and can be used decentralized.