The question would be a lot easier to resolve if the major MAGA thought leaders would stop making excuses for genocide. Anecdotally, my dad is MAGA-leaning right, and while he opposes the invasion and is happy to see the Russian army destroyed, his immediate response when I brought up the mass graves was “how much of that is propaganda though?”. Skepticism about what we are told about a war is always warranted, but right wing Americans are being actively persuaded right now to deny or doubt Russian war crimes despite overwhelming evidence.