Yeah, the bullshit comes in at that step because the parts of philosophy that are math and the parts that are sociology do not intersect. So it’s an amusing quip, but very disingenuous.
Sounds like someone hasn’t studied much philosophy…
Most of the better-known philosophers bore a strong affinity for math, and a strong ability to apply it to form their arguments. Socratic elenchus falls upon mathematical/logical deduction/induction that are prevalent in rhetoric to this day. Remeber Descartes? He was responsible for Cartesian coordinate geometry. The list goes on and on.
For what it’s worth, when I took Formal Logic (think XORs, conditionals, biconditionals, etc), it was a Philosophy class. And a good part of the class was applied mathematics.