SAHS, your parents have it exactly reversed. Apostates have no authority to “beat” JWs. Disagreeing with JWs is not beating JWs. Those that “beat” others Mt 24:48-50 refers to is those in a position of authority that have the power to wield punitive damage judicially, inflicting damage publicly as in a sentencing.
What are they exercised about? It’s, “faithful” to the Bible, who is? “Gentile times”2520 years is wrong, time of kingdom rule is wrong, understanding of “born again” is wrong, and their two tier system of Christians (A-grade and B-grade) is wrong, as well as, their incoherent “master delay” stupor, like a “drunkard,” publishing dates 1914, 1919, 1925, and 1975 for the “masters arrival” are all wrong.
The JW GB vigilante justice is unprecedented. In principle, it’s the “unfaithful” servant footprint and they deserves to be “cut him off” with the “hypocrites.”