>>/47088/
> paramilitaries and militia including groups like Azov Battalion

Azov isn't paramilitary, it is regiment of National Guard now. It was paramilitary volunteer force only in first years after Crimea. Now they even have tanks.

> Chechens

Social media warriors, mostly. As always. 
One LDNR officer said this openly, and they forced him to apologize as always: https://www.stav.kp.ru/daily/27369/4561532/
Chechen-Russian relations never change even on frontline.

 >>/47058/
> In worst case scenario they could even grow sugar beet on the long term.

It isn't that good. In 2019 only 0.6% of sugar beet seeds were Russian-made. Now import is very restricted, and there will be problems, although it doesn't mean that there will be no sugar beet of course, but maybe less in current year.

Actually problems are everywhere. As example - modern bearings were made only at few factories, and all of them used western tools extensively (and were partially owned): https://www.kommersant.ru/doc/5252504

Russian economy is very dependent of foreign tools and materials, and situation with restricted import is much serious that all this monetary thing that happens at bank level. China can't replace everything, and Chinese companies sometimes also follow sanctions when they have large western market. There is shortage even in office paper now because components for paper whitening weren't made locally too.