Thats the conventional wisdom and the idea upon which the Western sanctions plot as based - boycott Russian energy and commodities and their economy will implode and the Ruble will collapse. It FAILED miserably, yet people still keep repeating the absurd shibboleth, as though somehow the rest of the planet of 7B+ people don't want to buy oil, gas, fertiliser, minerals, wheat, uranium, etc....
This war is about SECURITY concerns. The West broke its word about not expanding NATO to the East, enhancing its own security at the expense of Russia, and ignoring Russian protestations about the risks to themselves. In our arrogance we engineered a violent coup in Ukraine to install rabid anti-Russian bandera nationalists, encouraged them to launch a CIVIL WAR against those who rebelled against the putsch, then tried to regime-change Belarus as well (funny how NATO spruikers always want to ignore that part).
Russia will NOT accept NATO-controlled Ukraine, and will NOT accept Banderites being free to forcibly repress Russian-speakers in their efforts to engineer a mono-cultural, mono-linguistic anti-Russia Ukraine. They restrained themselves for 7+ years after 2014, trying to reach an accomodation with NATO/US, insisting that Minsk 2 be implemented (*), refusing to accept Donbass rebel demands to join Russia. 7+ years of constant provocations, AFU agressions, Western sanctions & malfeasense... finally it was too much and the AFU preparing for a final military strike against Donbass was the final straw.
(*) In Minsk 2, Donbass would have remained part of Ukraine but with a measure of autonomy. Ukraine would have federalised, and would have formally enshrined the rights of Russian speakers (and other minorities) to speak their own languages (dialects) and have their own cultural identity. The Kiev Regime refused to comply, West refused to insist on their compliance, even though such ideas are supposed to be core values of the "liberal democratic West". Go figure...
NATO clowns can posture all they like about how they are morally & ethically superior with their corrupt brand of liberal democracy, and how NATO is a "defensive alliance" of which Moscow has no justifiable fears and has no right to "interfere", but that just arrogant chest-beating. Relentless expansion of NATO is a real threat, and Russia has a long history of being attacked and invaded from the West. If one constantly provokes ones neighbour and works to deliberately undermine their security one should not be surprised when that neighbour punchs you in the mouth when you try to pull down his fence...