It's more realistic and engaging, and it isn't 'wrong' to "speak the truth" about what goes on in those communities, or within those minority groups. I also made sure to highlight that you'd want to have variance in the characters to provide a broader context, with an eye to making it clearer to viewers that these demographic groups are not a uniform monolith, and that each person should be viewed as an individual. Putting out a show where all the white people are negatively type-cast, where all men who aren't FN are type-cast as incompetent morons, and where FN are all type-cast positively, is bad writing. Just like how back in the 1950s or whatever, when all women were type-cast negatively and all FN were type-cast negatively, it was bad writing. If you think that an adult audience is too stupid to understand that this shit is bad content, I need do little more than point to the shows cancellation as proof that it had gone to crap and detached from its audience -- if the writing was good, it would've/could've had more seasons. The production quality overall was decent.
To pretend there's no racism in FN communities is absurd, as the evidence is pretty blatant. And as for your comment, I didn't say anything about FN people as cheats, that's your bias again showing through. That sort of bias -- you thinking that all critics of FN must think FN are cheats, a potentially 'internalised' and imagined victimhood that taints your interactions with others -- ought to be represented on screen, with the negative repercussions put on display for discussion. The authenticity, or the relative authenticity of the characters matters.
As for muslims, why shouldn't the moderate muslim have a voice? Why shouldn't we tell the stories of what many of us have seen with our own eyes, and what many people living in western countries have gone through themselves? Why shouldn't we expect an adult show to tackle adult themes, rather than treat their audience like a bunch of immature, cattle-brained morons who can't understand nuance?
If you always had to portray characters/cultures in a positive light, without digging in to the conflicts and inner turmoils of individuals, pretty well every good show in the past two or three decades would be 'bad'. And I'm being very conservative with that time frame. Imagine Shakespeare, without any social commentary -- like Othello, where you can't broach the racial components of it. It would be utter drivel without that nuance. Good art / fiction tackles these sorts of concepts directly, messily, and puts it out there as authentically as possible for the audience to engage with. I encourage you to expand your perspective.