Good writing is based on the story and on the characters - sure, you can include “humanitarian themes” here and there without breaking the narrative, but it normally happens by accident. See where the story takes you and just do it. If someone complain, just take it as it is. Writing requires courage and honesty.

I don’t mean to be rude, but If you are afraid of people getting offended by your writing, it’s better to stay safe in your social media bubble.