Hey!
That’s a great question. I’d recommend keeping the mobile view where possible.
Users will still be able to access the site, but will experience it on the lowest breakpoint set within the editor. For example, if you remove the mobile breakpoint, you’ll be left with the tablet breakpoint as the lowest. Then, when you drag the editor handles to the lowest width, that will be the experience for mobile visitors.
It will also play a role in the way Google sees your site (looking good on mobile is important for user experience)