The US is not at war with Russia and no US forces are engaging Russian forces. This is actually an important distinction. It's much less of a conflict than the Iraq war.
It does show two things: US hegemony over certain European countries that might want to take Russian money and gas is weak, and the US foreign policy coherence is weak as Ukraine policy is at risk from cranks.
It does show two things: US hegemony over certain European countries that might want to take Russian money and gas is weak, and the US foreign policy coherence is weak as Ukraine policy is at risk from cranks.