It's probably not going to be done. Other than the obvious minimum relay fee rule, the fee is designed to make spamming transactions more expensive.
Spamming doesn't rely on the minimum fee set in Bitcoin Core. I just ran into this limitation yesterday, I couldn't set less than 1 sat/byte, while blocks weren't even full.
With the current volume of transactions, each transaction requires at least 10 satoshi/byte and that is already 10x of the fee that you've suggested.
Both
https://btc.com/stats/unconfirmed-tx and
https://coinb.in/#fees recommend 1 sat/byte fee for a fast transaction. Just a few minutes ago,
this transaction with 0.774 sat/B fee confirmed in 12 minutes.
By lowering the fees, this just gives spammers an easier way to spam up the mempool and doesn't benefit anyone else in any way; miners aren't going to accept transactions with fees that low.
The moment spam happens, fees go up. There's no need to artificially raise fees, let's leave that up to the market.