Questions like this have been answered by myself and many others many times before, and I'm not particularly interested in defending the answers by responding to progressive questions.

If you'd like to put forward an argument that it's totally great to have seven seasons and 144 episodes of a show that consistently features almost entirely white characters and actors, I guess you could try that. But I'll warn you ahead of time that based on the questions you've asked so far, I'm probably going to think your argument is stupid.