One negative (and intended) side-effect: USA as usual will reap all benefits from this war. Probably it is the reason why it pumped so much weapons into Ukraine

One negative (and intended) side-effect: USA as usual will reap all benefits from this war. Probably it is the reason why it pumped so much weapons into Ukraine and refused to discuss security questions with Russia prior to February 24. Sanctions announced by EU will immensely weaken EU economy and enrich USA by forcing EU to buy more expensive US oil and gas. Also, US sanctions are laughable compared to EU. E.g. EU cannot sell Airbus produced in Europe to Russia. USA can sell their Boeings. US jets fly over Russia, EU - cannot. Etc, etc. All in all, this looks like an attempt to plunder the biggest economy after they teared USSR apart.