An alternative is to stake on lightning in large channels, so that the close UTXOs will be big. Not the most simple alternative, but an alternative. There are liquidity providers that gives you inboud liquidity for a fee.
The scenario we talk about will maybe come in a far future, and lightnig specs will changes a lot, we will see the options we will have.

I think that economic activity of 50k sats would fiind their routes out of bitcoin, like on ecash (on virtual bitcoins). For me its ok scale the security and trust assumption for wallets based on how much is on stake.