I'm not sure why you are labeling Democrats as pro-war. Putin's troops invaded Ukraine. Democrats didn't advocate that. But they recognize the reality that Ukrainians are being murdered on their own soil by Putin's regime.
The American government is providing supplies for the Ukrainian people to defend themselves. They are not sending troops and our country is not at war. The ball is in Putin's court. Only he can stop his own troops.
I am not a fan of the Democrats. But, in this particular instance, they are not war mongers.