The Kents have traditionally been the source of Clark's grounded upbringing and essentially descent morality.
In Snyder's first film, Pa Kent advises young Clark that maybe he should have let a busload of kids drown and then later commits to dying in a tornado rather than have Clark risk exposing himself.
In this film, Martha Kent admonishes Clark to just stop being Superman, that he has no reason to help anyone and that she just wanted him all to herself.
Later,[BLACKOUT] some form of vision or memory of Pa Kent tells a story about the emptiness of heroism and how trying to help just creates worse problems.
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The film presents a very selfish Superman and he is encouraged to be even more selfish.
Snyder's Kents are fearful and self centered. They are the anathema of the very point of those characters.
Imagine if Spider-man's Uncle Ben encouraged Peter to just make a fortune using his powers for a wrestling career, responsibility be damned.
By mishandling the Kents, Zach Snyder mishandles Superman and superhoics in general on a pretty fundamental level.