For most of the world - remnants of colonialism and slavery.<p>In the US, this includes systemic racism like racial steering and redlining. The Home Owners&#x27; Loan Corporation policies between the 1930s and 1950s gave &quot;absurd amounts&quot; of money primarily to white home owners. So-called &quot;Sundown towns&quot; prohibited non-white people from living there. Levittown, the first and most famous mass-produced suburb in the US, did not accept applications from black people.<p>The white population has therefore been able to take advantage of the long-term real estate boom in the US, with the generous financial support from the government. The black population has not. It takes more than a generation or two for these differences to go away.<p>&quot;Why I never seen such problems with east asian immigrants?&quot;<p>Perhaps because you don&#x27;t know much about the topic? The Hmong people, who supported the US in Vietnam and fled to the US as refugees when the US pulled out, have had problem integrating. See <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Hmong_American#Hmong_in_the_U.S" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Hmong_American#Hmong_in_the_U....</a>. .<p>You also have to remember that the US was anti-Asian immigration for a long time. We feared the &quot;Yellow Peril&quot;. We had some pretty nasty and strict laws in place to keep most of them out. Quoting from the Wikipedia page on the topic, which quotes Horace Greeley:<p>&gt; The Chinese are uncivilized, unclean, and filthy beyond all conception without any of the higher domestic or social relations; lustful and sensual in their dispositions; every female is a prostitute of the basest order<p>In 1923, the US Supreme Court in United States v. Bhagat Singh Thind found that an Indian Sikh man, despite being Caucasian, was not the right kind of &#x27;white&#x27;. As the Naturalization Act of 1906 allowed only &quot;free white persons&quot; and &quot;aliens of African nativity and persons of African descent&quot; to be naturalized citizens, his naturalization was revoked.<p>With the Immigration Act of 1917 we banned immigration from much of Asia and the Pacific Islands. It wasn&#x27;t until the Immigration and Nationality Act of 1952 that we let Japanese, Koreans, and other Asians become naturalized in the US.<p>With the Immigration and Nationality Act of 1965, the old quota system was replaced with a &quot;preference system that focused on immigrants&#x27; skills and family relationships with citizens or U.S. residents.&quot;<p>So you&#x27;re only talking about relatively recent immigration from East Asia to the US, and with a preference for those who have skills the US wants.<p>That&#x27;s a very different background than the generations of blacks who were taken or born into slavery, followed by another century of racist social and government policies. It&#x27;s therefore meaningless to make the direct comparison you want.