Most people only seem to be able to operate in black and white. It's much easier after all and requires far less effort, plus it's a more simple sell for the newspapers and governments.
It is not a question of US\West = Good, Russia = Bad, more that the US is awful but Russia is worse. You only have to look at the hundreds of thousands of people who have died in US backed wars and conflicts as they come in on the side of some of the worst dictators in history just as long as that dictator keeps their country open for US\Western businesses to exploit.
Nicaragua, Guatamela, Indonesia, El Salvador, Iraq, Libya, Iraq again - they only step in and change course when the dictator starts to veer too far off course, not usually in human rights terms but ones that affect American\Western businesses.
We are kidding ourselves if we think we are the 'good guys' - we are just the least bad alternative. For all the claims about Russian propganda, its clear that the US is far better at manipulating popular opinion in its favour over the long term.
This is actually one of the few conflicts where we can legitimately claim to hold the moral high ground. Putin may not like Nato expansion, but he really has no valid fear that somehow Nato is going to attack Russia. He just hates Russia's decreasing influence in world politics as its role passes to China - a fairly piss poor reason to invade Ukraine.