No short-term massive military aid, but long-term 'security guarantee' as they strive for a prolonged war of attrition for the sake of their geopolitical interests.
Do you believe they should receive immediate massive military aid? Because we're basically in a Mexican stand off with Russia and China right now. As soon as we pass a line for what intervention Russia is willing to tolerate, we will start a cascade of events that will lead to WW3, and possible nuclear war. Most of us don't want to see the planet nuked into extinction over a small war on the other side of the planet.
Granted, I think war is inevitable. But that doesn't mean we should rush into it. The bloodshed will get exponentially worse the minute this war becomes bigger than Russia v Ukraine, and we're already very close to the tipping point in my estimation.
I don't know about "easy", but the west should have stepped up when Russia stole Crimea. Allowing them to take and keep it has just given them a stronghold to launch further attacks from.