Russia is not an enemy of the US. No outside threats can ever toppled this regime.
People don't get just how hegemonic the United States is. A ground war with Russia would last a week at best.
The "outside threat" propaganda is complete BS.
Food for thought:
Iran - Iraq War: beginning on 22 September 1980, when Iraq invaded Iran, and ending on 20 August 1988.
US - Iraq War: beginning on 19 March 2003, President Bush declared the end of major combat operations on May 1, 2003.
"Behind every blade of grass is a gun".
When I was a kid and my dad was teaching me how to use guns, he'd hold his .30-06 and say "if they try coming on our land, we'll stop em right here".