Yes..population is the 'keystone' issue..meaning that, no matter what we do with other problems...pollution, global warming, education, medicine, energy... if we do not limit population, conflicts and hunger and frustration over lack of 'space', (both personal and national), will continue & get worse.
   'Racism' is merely a side issue which could gradually ease if everyone felt like they had some control over the basics of food, shelter and 'identity'... meaning self-respect and such.

The human race in general cannot continue to push the limits of survival and keep competing for food, water, space and resources....when they feel they are not getting a 'fair share', racism and other fear-based responses will follow.

(and yeah...some will find ANY excuse...)