That's malicious BS.

The father of modern conservatism was Edmund Burke, who had a sophisticated view of society as a "organic" interweaving of customs and institutions which are interelated in ways that are difficult to perceive. Reforms should be gradual, because with all those interconnections it's real easy to screw things up. Hayek is an intellectual descendent of Burke. Adam Smith is the Godfather of conservatism; his understanding of human nature has never been found wanting, and every effort to deny it (Rousseau, Marx) has ended in oceans of blood (the French Revolution, the Evil Empire, Mao, Pol Pot, etc.).

Conservatism is an honorable intellectual tradition that is completely legitimate. Statements like the one in the quoted post are not just an illegitimate rhetorical device, they are uncivil.

You may have a legitimate complaint with certain political positions in the current era that claim to be "conservative," and that's fine. As used in the current political environment the terms "liberal" and "conservative" have become largely useless in denoting any particular ideology. The quoted remark is still malicious and uncivil.

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Rousseau and Marx are the fathers of modern liberalism. Rousseau says man is basically good but society screws him up, Marx says human nature can be changed to create a "new socialist man." As TV's Dr. Phil might say, "How's that workin' for ya'?"