We both agree that fees will rise, but the reason will be increase of use of the blockchain, not increase of price (although it makes sense the 2 will go hand in hand).
1) what do you mean plebs will not have any utxo on layer 1? Do you think they will use only layer 2/lighting without having any utxo on layer 1?
I don’t think this is what is gonna happen. I see more likely that pleb will use layer 1 only for important transfers and most of all to store their savings, and use layer 2 for smaller payments (what many of us already do now actually)
About the future role of nodes I think is too far ahead in the future to try assess how it will develop (things change in unpredictable way). But I think the 2 main reasons for running a node today will persist in the future too (and maybe other reasons will be added)