No, they shouldn't unless you want competition from cheap spam

[quote author=cryptodude link=topic=5452136.msg62311732#msg62311732 date=1685205017
However, it's important to consider the broader context. Lower transaction fees can lead to increased transaction volume and adoption of the cryptocurrency, which can result in higher demand for mining services. Additionally, low fees can attract more users to use the cryptocurrency for various transactions, potentially driving up its value. Therefore, miners need to assess the balance between transaction fees and the potential benefits of increased adoption and network growth in order to make informed decisions about their mining operations.
[/quote]

Yeah, nice in theory, so damn bad in practice.
You say that low fees will drive adoption but there a few problems with it, if adoption means more transactions it means more transactions in the mempool, it means longer periods you have to wait for your tx.
The miners will not benefit a dime from it since even with mass adoption and billions in fees they will still be forced to include low fee tx, so they will earn still less than they would now by accepting high transaction fees.

I'm quite surprised to see that there are some who hint at thinking that imposing a flat fee of 1 or 5 sat/b might be a solution and suddenly the laws of mathematics will change and everyone will get their tx. No, it won't mean that,  it will only mean that if a larger tumbler or exchanger will drop a shitload of transactions for 2, 4, 12 hours the network will be paralyzed and nobody will be able to get a tx no matter how much they are willing to pay. And this is just setting the stage for the cheapest and dumbest 100℅ chances of success spam attack.