"Some people" have the moral high ground because Russia is invading Ukraine, and having Russian soldiers fight for the "separatists" proves that. And yeah indeed, who gives a fuck about some international law about mercenaries? All soldiers are mercenaries, saying anything else is just play-talk.
Russia has not invaded Ukraine. Please provide evidence to prove otherwise. When the West and Western run NGO's lambast Russia and the separatists actions, its comparable to a murderer running a court, a lunatic running an asylum, a nobel peace prize laureate pushing the world into another cold war and creating the conditions for the next world war, (oops already happening). You and others support the Western establishments position toward Russia and the separatists, regardless of all the fake Western propaganda fresh from Kiev, the whitewashing of the Ukrainian regimes war crimes, the whitewashing of the neo-Na zi element amongst the Ukrainian army and government, and of course the Wests blatant hypocrisy and the amount of blood spilled by our own nations/alliances. To ignore so many instances of aggression, bloodshed, interference, breaching of multiple nations sovereignty by the West simply because the other side just so happens to be Russian, or Iraqi, or Afghani is an attitude similarly held by a racist, and it holds little to no substance.