The problems with their argument is this, Bitcoin Cash has proven 8mb is doable without any major issues,
Bitcoin Cash increase to 32 mb is too much too soon as their 8mb blocks were not even full.
It does not have to crank out 32mb blocks everytime. The blocksize expands UP TO 32mb as needed.
Currently block reward is around $80k per block and it has only about 1500 tx in a block. This means ALL BTC holders are paying about $50 per TX in coin inflation. Clearly, the miners can easily scale TX volume onchain with plenty of margin for profit. This is the real cost of TX, not just the amount the sender pays for the TX. TX volume clearly needs to scale onchain.
The reason non-mining nodes are not rewarded in PoW systems is because proof-of-node is corruptible paradigm. Non-mining nodes are basically just triple checking the double checking done by miners using the tech equivalent of an abacus.
If non-mining nodes cannot keep up, then they should not be protected. This is natural selection process and it must be allowed to occur. If you try to save the retards, you end up with a retarded network.