Watergate was about democrats getting payback on Nixon for being so anti-communist. Once they got him out of the way, they were able to get cut off funding to South Vietnam and Cambodia and allow their allies the communists to win, and murder millions of people in re-education camps and the Killing Fields.
I once got to publicly point that out (consequences of leaving Viet Nam) to someone who had proudly boasted of being in the anti-war movement and “defeating Nixon.” You should have seen the look on her face when I asked her how she felt about being partly responsible for the deaths of over two million Cambodians.