On this year's day of remembrance for the fallen leader, Martin Luther King Jr., the question reflected above remains more open than it should — it is not a problem with God as much as it is a problem with us, who should be the manifestation of God in these areas.
The link below selected 5 of MLK's speeches, all of which I have listened to. It is clear that he understood the distinctives of his audiences, but more importantly the prevailing message that was needed, and still is.
5 of Martin Luther King Jr.’s most memorable speeches
I have respect for men like King who are both willing and able to speak truth to power under the banners of justice, peace and love. And, especially, when they are willing to die in doing so (see last speech from the link above — he was killed the next day, at the age of 39).
