Kinda doesn't though. Mobile most of all needs concessions for the much more limited input precision.

Personally I prefer pinch zoom for input precision instead of overly mobile design.

You need text to scale and reflow to device width if you want text to be readable. This is one of the main reasons for mobile web design. Else you're stuck panning around the screen to read the text zoomed in.

Once you decide to scale text to device size so that it's readable, you are stuck doing the rest of mobile web design (fluid layout).

You need to allow users to scale text as desired, as the original web intended. You shouldn't make a site targeted to mobile; you should make a site that allows the user to display in their client as they wish.

The problem will fix itself.

I don't understand what that means in practice except to evangelize the tenets of mobile (fluid) design.

How are you going to make a site that lets the user display the site as they wish without just making a reflowable mobile-friendly site?

Desktop sites are generally static and have nonfluid components like sidebars which is how fluid design became necessary in the mobile age which seems to be what you are proposing.