Well I am not going to copy/quote all those questions an will provide a simple answer.
Most people are not pro Ukraine or against Russia because they have a racist agenda or think the boogie man is out to get Russia.
This is what most people here would think:
Country A invaded Country B
Country A is the aggressor, therefore they must be stopped.
Country B is the one who is trying to defend itself, so various other Countries chose to help Country B push out Country A out of Country B's homeland.
It is that simple.
If America decided to suddenly invade Mexico, I am sure most of the world would condone that action and help out Mexico.
If Russia invaded China instead, same deal. We live in a time where science and technology has advanced so much that there is no need for us to invade each other. The human race needs to think of itself as one and work together to achieve a common goal of sustaining our species.