Your thesis assumes that Marxist sociology is a domain of knowledge. Apparently the parent hinted it is not. There is some controversy here, certainly. However

Your thesis assumes that Marxist sociology is a domain of knowledge. Apparently the parent hinted it is not. There is some controversy here, certainly. However people who have lived in, or learned about, the societies where the Marxist ideology was (supposedly?) placed in the foundation, can be excused if they have strong opinions about it, and mostly negative. Perhaps Marxism could be studied as a specimen of a certain mindset, like intellectual design: "learn about it", not "learn it". One problem is so many people (millions!) have had Marxism shoved in the throats. No wonder it tends to go out the other way. (Sorry for the graphic image.)