Got to agree with OP in a certain way, though I think personally it's less the dollar cost of the fee (although this will for a long time be the focus) but the percentage of the tx amount. So yes, miners will need the fees incentive but if the sat cost becomes too high, it makes it less interesting for me.

To be as objective as possible, me paying 1 mbtc in fees only becomes worthwhile for a 0.1 BTC send. Right now, I'm actually okay with the the 10k sat fee to pay for a 3 input spend of 10 mbtc. But I can imagine it's annoying to spend 1 mbtc for a couple of pizzas now without LN.

Still think the benefit of sending something over such a secure network is well worth the cost. Was hardly ever my issue anyway, LN or my debit card should cover my pizza spends...