You seem to forget that they have promptly acquired a significant chunk of males fit for an autopsy (but only after the draft, tee-hee) on newly-annexed territories of Ukraine. Besides, Russia continues to adapt, whereas Ukrainian authorities initiate ever more harsh and desperate calls to mobilization, often degrading as low as to hunt men on the streets.
Clumsy and often farcical sanctions against Russia stalled the capital outflow from the country and thus left to many big hats no choice except supporting the conflict, because even if they openly desert to Ukrainian side, it sure won’t guarantee absence of cancel culture terror. ;) Look how foul it turned out, say, for Fridman, Aven, or Russian diplomat Boris Bondarev.