They gave opposing views enough leeway, and respect with a touch of ambiguity that people will take what they want for it.
Basically they didnt straw man or be super heavy handed. Personally I dont like the whole gender shit because I can feel the troon agenda.
RLM spoke how star trek did the morality tales by dressing them up like this.
TNG had a episodes about conversion therapy, ritual suicide, the mentally retarded (paklead), space jews, drug addiction, etc.
But having people act in character and legitimate motives makes a compelling story.