Because the west installed a far right proxy regime in Ukraine that has literal fascists in the government and the military. One has to be utterly ignorant not to be aware of this fact given that it's been widely reported in western media:

• https://www.thenation.com/article/archive/neo-nazis-far-right-ukraine/
• https://www.researchgate.net/publication/299383810_The_Separatist_War_in_Donbas_A_Violent_Break-up_of_Ukraine
• https://jacobinmag.com/2022/02/maidan-protests-neo-nazis-russia-nato-crimea
• https://www.internationalmagz.com/articles/conversation-with-dmitri-kovalevich
• https://www.bbc.com/news/world-europe-30414955
• https://www.bbc.com/news/world-europe-28329329
• https://www.haaretz.com/world-news/europe/2021-05-04/ty-article/.premium/ukrainian-official-changes-tune-on-unacceptable-march-honoring-ss-unit/0000017f-e0e2-d7b2-a77f-e3e7ee990000 (https://archive.ph/ckwv4)
• https://www.ft.com/content/7191ec30-9677-423d-873c-e72b64725c2d
• https://consortiumnews.com/2022/12/29/on-the-influence-of-neo-nazism-in-ukraine/
• https://consortiumnews.com/2022/12/29/evidence-of-us-backed-coup-in-kiev/
• https://gordonhahn.com/2015/05/02/ukraines-neo-fascist-right-sector-claims-responsibility-again-for-2-may-2014-terrorist-pogrom/
• http://www.errc.org/news/anti-roma-pogroms-in-ukraine-on-c14-and-tolerating-terror