Monero and other crypto folks seem to rush in whenever Bitcoin is being attacked for something. I find it fascinating.
It's an interesting game that law enforcement is caught in. On the one hand, they want to demonize bitcoin because it's outside of their control. On the other hand, if they attack bitcoin users too strongly, they push people to alternatives like monero that are both outside of their control and legitimately untraceable in system.
Which devil do you want to deal with?
Monero is being used as a currency though which is relevant because bitcoin used to be used as a currency too before the first bubble/speculators got a hold of it. It's critical to any conversation with claims about bitcoin being a great currency (it's not)
ETH is not deflationary and it is a good candidate to be used as currency.
The characteristics that make Bitcoin unsuitable as a currency right now isn't is deflationary printing, it's that it's unregulated, uncontrolled, and subject to tragedy of the commons (as is seen with the multiple rejected block size increases).
I'm guessing you're opposing EIP1559 then
Intuitively (have no idea how to do this), it would be interesting to have Country's coin supply grow (approx.) with its GPD/productivity.
ETH2 won't be deflationary because such things is nearly impossible in a PoS network. You need issuance to rewards validators. It can't be network fees because if network fees are high, the network is doom to fail.