I'll look into LN more, I'm familiar with the centralization concerns (but still think they're able to be mitigate until more upgrades), but am not familiar with the costs you're bringing up. Fee estimators notoriously round up, I've never spent more than a dollar but that's anecdotal
BCH is still an attempt at centralization from bitmain, a company which literally installed kill switches in their miners without telling anyone, and ran botting attacks in /r/Bitcoin and /r/BTC during that fiasco - the hard fork they created is absolutely more centralized than Bitcoin
There will be a time to do something as risky as hard fork for a block size upgrade, but to do it for the sake of just one upgrade that serious doesn't make sense to me. If a hard fork must happen there might as well include other bips that necessitate a hard fork like drivechain.
Soft fork upgrades which enable more efficient algorithms like schnorr / SegWit in the meantime have scaled tps without having to waste block space. Bch is cheap because there's no demand or usage.
I wish more guys just said they didn't know something instead of clearly not knowing what they're talking about and running their mouth based on vibes