You hit on the key word: "madmen".
'...they became vain in their imaginations, and their foolish heart was darkened. Professing themselves to be wise, they became fools,... Wherefore God also gave them up to uncleanness through the lusts of their own hearts, to dishonour their own bodies between themselves..."
Romans 1 has these fellows pretty well pegged...
With committed Leftists it always eventually comes down to mass murder in the name of the “Common Good”