They were so peaceful they didn't even act on the American warnings, and publicly disbelieved them.

Not sure how much that counts in favor of your "peacefulness". Stalin wasn't the most peaceful man either.

They ("Nazi puppets") would have won the damn war already if they have been prepared just like they were told to.

Then Russia would simply mobilize and crush them with superior numbers, and have Belarus stage diversionary operations to prevent troops in the West from doing anything. There is no winning for Ukraine. A loss would be fatal for Putin, so there is no way he will allow that to happen.