L2 =/= Lightning

Could be zk rollups, anything. Like I said, it may not even be needed if adoption rate is low. I highly doubt the whole world is ever going to use Bitcoin much less Monero anytime soon, if ever.

Bitcoin only scales better than Monero if you are transacting completely unprivately. Start throwing in coinjoins and it start creeping towards Monero tx size and in whirlpools case surpasses it. Obfuscation is also weak privacy, nothing is hidden, the connection graph and range of amounts are all visible. Available to potentially deobfuscate with future data.

The tx cost of always doing this is also not scalable/sustainable.