I think you got it backwards on miners. They are the one who are pushing for it because ETH is about to run out and the reason why it is being converted to POS (vs POW). There is hardly any left to mine so what do they do? Create a fork that have enough supply they can mine for the next several decades.
unlike most other altcoins, ethereum never had any cap. any decent way of distribution like halving and other stuff. the block rewards is still as high as ever. it will never run out. as long as PoW is alive and the difficulty bomb has not gone off, the blocks will give the same amount of reward as before.
one of the criticisms to ETH is exactly this fact that there has never been any cap. or any clear plans! it just keeps being created.
