In my opinion, the Russian economy will not collapse due to the imposition of Western sanctions. 

However, Russia is threatened with the "archaization" of the economy. 

At the same time, cars, trains, planes, and trains were produced in the USSR.  All this functioned without the use of modern electronics.  The Russians have the opportunity to gradually restore their heavy industry and even machine tool building. 

However, in the field of microelectronics and modern technologies, they are hopelessly behind the countries of the Western world.