Ehm... You are bad at history. Russia withstood several Polish invasions, several Swedish ones, several German ones. It lost Crimean war to allied 'EU' forces, but in the end took peninsula back by peaceful means. What you are referring to was WW2 and its not that simple. Would you like your parents burned in Auschwitz or similar European institution, or have their chance in Siberia?

I'd rather Auschwitz: you die faster, and you aren't contributing to your oppressor's bottom line.

Unlike European contries who never invaded Russia /s

You mean that Napoleon guy, once?

I think you'd want to dive into history books. Almost all European contries (that were close to Russia or Russian Empire) did that at some point of time.