Wow. Is this a sarcasm piece, a botched attempt at comedy, or a Canadian gone over to the Dark Side?

Even his premise is wrong.  "Emboldened by Tricky Dick’s impotence, the North Vietnamese ignored the ceasefire and within two years, they controlled the entire peninsula."  But no, it was not the Watergate investigations that was the direct cause of North Vietnam's aggressiveness.

In 1973, after the Paris Peace Accord,  the President was hamstrung by Congress from unilateral action. Nixon resigned in August 1974.  The major push by North Vietnam happened in 1975.