Nikkas was ganging up on me like i was crazy. Dont get mad at me for pointing out the plotholes the director made
Why put the neighbors being jealous of the family in the movie if it wasn't important to the plot? Why put the neighbors having a party with a packed driveway and purposely not inviting the family over? Why put that stuff in the movie?
I think the director put it in there to say that the neighbors
were plotting and that if it wasn't the crazy sadistic purgers that killed them, it would have been the neighbors. And it all tied up at the end in some sort of message on racial prejudice and stereotypes. Because their son lets some strange black dude into their house in the middle of the Purge

but it ended up being this strange black dude that saved their entire family in the end.