One can say everyone almost every people in this world are Hapa themselves. Ancient Wasian Hapa existed long before modern Hapas
Technically speaking almost everyone is mixed of some sort just in different degrees and I'm not talking different ethnicities but different racial admixtures.
Look this DNA chart from all people in this world
Even different types of Wasian exists.
Central Asians: Mixture of Mongol army invaders, Turkic people that mixed with Indo-Europeans white people and Iranic, first from conquest and later intermarrying which is why Kazakhs being 63-70% Asian while Turkmen being 21-39% Asian , Uzbek being 35-46% Asian. Everyone being mixed, not a single being pure. They have 40-80% West Eurasian/White maternal ancestry and similar percentages in paternal. Due to conquest and assimilation,
Filipino: have 5% European DNA and 2.3% Native American from Spanish and Latin American soldiers and settlers who married with Filipinas
Hazara people: Descendant of Mongol army (and Turkic) invaders that mixed with Pasthun, Persian, Pakistani. Which is why the 50% East Asian and 50% Middle Eastern and Pakistani like in Iran, Afghanistan, Pakistan
East Europe and North Europe have 1-5% Asian to some having 10-14% due to Mongols, Turkic people invading them and also from ancient medieval migration of Siberian people.
Or from subcontinent of India
Indian/Pakistani are mixture of Middle eastern and (ASSI) South Indians. Indo-European intermixing with Dravidian speakers.
Or Black biracials
East Africans: Mixture of Arabs and Black people. Arab invaders and migrants who intermixed with black people.
Cubans, Jamaicans,, Guyana, Trinidad All Black people with substantial European admixture from European colinial soldiers and from mass wave of Chinese male laborer's and male coolies marrying with Black females which is why DNA always show them with traces to moderate percent of Chinese DNA. In Peru too.
This is only the West Eurasian DNA chart. ( West Eurasian = European, Middle Eastern, North African type DNA) It means even most of these West Eurasian are not even pure themselves.
| Ethnic | West Eurasian % |
|---|---|
| Angolan | 2.30% |
| Algerian | 92.60% |
| Algerian-South | 80.70% |
| Armenian | 99.20% |
| Azeris | 93.70% |
| Belarusian | 98.50% |
| Chinese Han | 0.00% |
| Chinese Han-West | 4.20% |
| Egyptian | 90.90% |
| Egyptian-South | 80.20% |
| Ethiopian | 45.80% |
| Ethiopian (2) | 36.50% |
| Ethiopian Tigrayan | 55.20% |
| Finn-West | 94.50% |
| Finn-East | 86.50% |
| French | 99.20% |
| German | 99.50% |
| Ghanian | 1.80% |
| Indian-North | 56.30% |
| Indian-North (2) | 61.30% |
| Indian-South | 34.50% |
| Indian-South (2) | 27.70% |
| Indian-Dalit | 9.20% |
| Iranian | 98.10% |
| Irish | 100% |
| Kazakh | 36.40% |
| Kazakh (2) | 30.20% |
| Moldovan | 98.30% |
| Malay | 6.00% |
| Mongolian | 8.20% |
| Mongolian (2) | 1.80% |
| Mongolian-Khalkha | 7.80% |
| Mongolian-Oirat | 17.30% |
| Polish | 98.80% |
| Russian | 97.50% |
| Russian-South | 98.70% |
| Russian-North | 86.10% |
| Saudi | 93.20% |
| Spanish | 99% |
| Spanish (2) | 97.60% |
| Sudanese Arab | 40.50% |
| Sudanese Arab (2) | 48.80% |
| Turkish | 93.10% |
| Turkish (2) | 88.40% |
| Turkish-Yoruk | 81.80% |
| Turkmen | 71.70% |
| Turkmen (2) | 74.20% |
| Turkmen-North | 60.30% |
| Turkmen-South | 79.10% |
| Ukranian | 97.80% |
| Uzbek | 62.50% |
| Uzbek (2) | 54% |
| Uzbek-Tajik | 83.20% |