the answer will come, once it is a problem indeed. So why ask what if, if it isn't? What, if you die ... 🤷♀️
I think you are right. Once it becomes a bigger problem more concrete solutions will come, especially as it starts to affect those with the ability to develope solutions.
Honestly in the last couple of month, seeing fees at 4 and less Satoshi, I wonder what will happen if 0 😱 or if you get paid for using the baselayer 🤣 We are currently incredible low.