The third sense of “individualist” is the fallacious one. Analytical and political individualism does not mean we must subscribe to what we might call “atomistic individualism,” believing it is morally desirable for humans to deny the need to be connected to others through group identity. This belief too often leads some libertarians to be suspicious of other libertarians who do accept some group identity. I think this is both an error and a huge strategic mistake.
— Steven Horwitz, “Are Libertarians Individualists?“