Probably the most important lesson to take from 1984 is Eurasia/Eastasia war flip-flopping from one day to the next (we are now at war with Eurasia, we were ALWAYS at war with Eurasia). The thing that communists do is they will deliberately change the party line, inexplicably, from one day to the next. It's not hypocrisy, it's hierarchy. They're testing your loyalty to the state.
They must get you to abandon your own eyes and ears, your own logic and reason, and bend to the will of the state. They must get you to believe that up is down, war is peace, men are women, slavery is freedom, and they will invert their most deeply held beliefs the very next day and just...move on as though nothing ever happened. Leaving you baffled and shouting "hypocrisy!"
It's not hypocrisy. It's hierarchy...they need to know that you will be a good little slave and gobble up whatever the state says, and abandon your principles in the process. If you balk and say "wait, weren't we at war with Eastasia yesterday?" you get the bullet. You're not loyal enough to the state. Communism requires that you abandon your humanity, so it cannot tolerate free thinking.
Communism is a religion, not a political ideology, nor an economic structure...it's a religion that worships the state. And whatever the state says, goes.
This is why it's always pointless to call out "hypocrisy" on the communist left...they know. They don't care. The hypocrisy is the point. It's how they flex their unflinching allegiance to the state's authority.
It is a religious cult full of bitter, self-loathing malcontents...they are the fuel for the revolution, because the only kind of person who worships the state, and celebrates this "hypocrisy" is someone who hates themselves...they want to be demoralized, they want to be abused, they want the filth, they want to degrade themselves because they hate themselves. When you accept this, suddenly all of your debates with your local commies make a lot more sense, huh? All of their behavior is less confusing once you see that they are completely demoralized and have no governing principles other than self-loathing.
The more you point out their hypocrisy, the more they get off on it. Just keep that in mind as you debate these freaks.