As stupid as us going to war in June 1812 because Great Britain had violated U.S. sovereignty implying that our nation was still a colonial entity and subject to them. We had no alternative to war ... neither does Ukraine.
In each case, surrender or accommodation to superior force was an option.
Madison's government believed they could win, and they were right, so it was a wise choice.
You are entitled to your opinion (if it is your opinion) that Ukraine can beat Russia straight up, but it's my opinion that the certain outcome for Ukraine is death and destruction, and, that being so, I have no appetite for cheering them on.
The strong do what they can, the weak do what they must.
http://www.conflict-news.com/live-feeds/ukraine/
Allegedly a live feed from over there. Really, it looks bad all around.
The website is a bit of a novice as far as quality of stories go but the live feed is okay.