They’re pointing to a distinction that no one cares about (except the fringe - yes, fringe - Leftists who want to abolish private property) and using that as a platform to imply or outright say false things about American liberals.
Very similar to the above example.
Motte: I, a Leftist, am criticizing the liberal support of private property, that’s all
Bailey: liberals also support fascism/colonialism/laissez-faire capitalism/insert Republican ideology here therefore Democrats support fascism/colonialism/laissez-faire capitalism/insert Republican ideology here