There are so many blatant inaccuracies in your statement it's hard for me to determine if you just don't know your history and are making a honest mistake or purposely spreading lies. I hope it's the former but here we go on each.

Korea, Mao did not "attacked the United States and South Korea" as you claimed. Kim II-sung got the green light to invade the South from Stalin and did not notify China until the last min. Mao and CCP told them they disagreed, but there was nothing they could do to stop Kim with Stalin on board. In fact, Mao was actually trying to build a relationship with the US at the time and Chinese archives suggested letting Kim attacking the South was Stalin's way of sabotaging any possibilities of a normal relationship between CCP and the US. Chinese army didn't enter Korea until US forces went well passed the 38th line and MacArthur was on his way to Yalu river. Mao sent the army because he didn't want US army occupying North Korea and sit on the Chinese border, just as US didn't want Kim to occupy the South. It's self interest, nothing more or less, but what you claimed is simply false.

Sino-Soviet. Border scrimmage had been occurring for over a year before the military conflict on the island. Both sides have been having military conflicts, what you are claiming is frankly a joke.

Sino-Vietnam war. That was 1979, 3 years after Mao's death and you are blaming Mao on it! Again, it was a border scrimmage that both sides were provoking each other, simply no conclusive evidence to call "invasion" on either side.

"China attacked almost every single neighbor from 1950 to 1970"? You gotta do better than making up hyperbole like this

Mao did plenty bad things to his own people, and I'm certain Confucius Institute don't tell the whole truth, but neither is the replying on Joseph McCarthy, military industrial complex or Fox News.