"Easily finding solutions" (ie, buying dongles, adapter cables, and/or hubs) is still expending time, energy, and money to get back to exactly where you were before. Unless there is some significant improvement in user experience (increased speed, decreased latency, more reliability, etc.), you're not gaining anything for that effort.
Again, "the new hotness is better than the old broken" is not a good reason, unless you can explain how the former is better than the latter. I'm still waiting for you to answer that relatively simple question.
See, this is the related problem with the idea of "future proofing" anything. There is really no such thing as "future proof", for exactly the reason you gave me. "the world is moving forward". Eventually, people will be telling those of us who bought those "future proof" USB-C devices that you should be moving on to USB-D because "the world is moving forward". It would be reasonable for you, also, to ask those people "what's in it for me?"
I mean, you almost get the gist of my argument right here. You obviously know that there are clear benefits to moving to Mx processors. You list two of them right here. I'm just waiting for you to do the same for my USB-A devices.