Agreed that caution is warranted. 

I’d push back though on wanting/expecting a perfect scaling solution. It doesn’t exist. Scaling comes piecemeal.

For example, SegWit transactions are denser than original transactions. Taproot transactions are denser still. Lightning introduced orders of magnitude more throughput, but with different tradeoffs (always online, coin locked in channels, etc.)

These scaling improvements make better use of block space and increase privacy to boot. But they’re not the end of the story. Likewise, whatever comes next won’t be the last word on scaling either. 

 Incorrect.  segwit and taproot decreases density by filling the witness section with spam data and creating utxos without monetary value. 

 I’m not sure these approaches help. It’s like trying to plug a dyke with your fingers. Eventually the water comes in. Any efforts can merely delay the inevitable and risk negative effects like the inscriptions spam. 

Fees are going to increase. Trying to delay the reckoning so that we can buy coffee on L1 for a short time longer seems pointless to me. Why not recognize the inevitable and build for that future instead? 

 Because human nature is that they just can't leave well enough alone.  Have to monkey with it.  Have to mess it up.  Impossible to just sit quietly and watch.  Everyone wants to be a hero.

But thank you for articulating clearly the silliness of their argument.  A couple more cups of coffee on L1 indeed...