By 2050, blacks will be 25% of the global population. And it'll be around 45-50% by 2100. By 2150, 60%+. And its only going up from there, because black Africans continue to challenge the social dogma that, Higher Living Standard = Lower Birth Rate. In fact, as living standard increases, black Africans are having more children, not less. And white people in white countries, from billionaires like Bill Gates to everyday normies donating money to Save The Children and endless other charities looking to feed, clothe and babysit Africa, will continue enabling this.
Think of the arc of history. This 100 year period is almost no time at all. This is a radical re-shifting the genetic baseline of the species Homo Sapiens.
In 1900, white Europeans were 21% of the global population. Black Africans were 5% of the world population. The country of Russia alone in 1900 had a population as big as the entire continent of Africa. By 2100, black Africans will be 45%+ of the global population, and whites will be around 3-5%. No indigenous European countries, let alone historical colonial states, will remain majority indigenous either.
Genetically, homo sapiens are changing from a species dominated by white Europeans and east Asians (100-115 IQ) to a species dominated by sub-Saharan Africans, and Muslims (75-90 IQ) over the span of 200 years.
Once you factor in race/IQ, the reliance on white man's technology to feed and provide for the booming population and climate change making large parts of the global south uninhabitable, let alone the death throes of capitalism, and the ever increasingly concentration of wealth, it is easy to see that humanity has not hit the worst of it yet. Not by a long stretch. The horrors seen in WWII is absolutely nothing compared to what is to come as this radical change in humanity occurs.
There is nothing that can prevent this, except for a genocide of 5000-6000 million people.