That bluster is a strange immature mind set that I don’t understand. Most mature and rational people don’t resort to things on par with an 8 year-old school yard bully.
To understand, remember that Russia, Soviet Union, and now Russia have used this simple-minded propaganda for decades and decades. Remember Pravda? It's no different from our own liberal/socialists MSM that pumps out the same BS talking points every day. Repeat, repeat, repeat.
Can't remember who said it: "If you tell a big enough lie often enough, people will come to believe it". Goebbels, Hitler's Minister of Communications? May have the quote and Goebbels position incorrect.