Americans conquered America from the aboriginals who were living there

Edit: Btw, if it wasn't clear, I'm disagreeing with you, because by your logic we would also have to condemn:

Egypt who conquered Nubia, parts of the Levant, and various neighboring regions multiple times.

Babylon and Assyria dominated who Sumerian lands, various Mesopotamian city-states, and parts of the Levant.

The Persian Empire conquered most of the Middle East, Egypt, and parts of India, and later Central Asia.

Islamic Caliphates (Umayyad and Abbasid) who conquered parts of North Africa, Spain, the Levant, Persia, and more.

The Ottoman Empire that controlled large parts of Eastern Europe, North Africa, and the Middle East.

The Roman Empire that conquered Britain, France (Gaul), parts of the Middle East, North Africa, and much of Europe.

The Macedonian Empire (Alexander the Great) who conquered Persia, Egypt, parts of India, and Greece.

The Viking Conquests that involved colonization of parts of England, France (Normandy), Iceland, Greenland, and even North America. Napoleonic France conquered parts of Italy, the Netherlands, Germany, and attempted to hold Egypt.

The British Empire colonized the Americas, Australia, India, parts of Africa, and various islands worldwide.

The Aztecs conquered neighboring Mesoamerican tribes before the Spanish conquest.

Incas who subjugated various tribes across the Andes, forming an extensive empire.

The Spanish Empire who conquered most of Central and South America, the Caribbean, and parts of North America.

The United States acquired Native American lands across the continent through treaties, purchases, and conquests (e.g., Mexican-American War for the Southwest).

Portuguese colonizers who took land from indigenous Brazilian tribes.

The Mongol Empire who conquered China, Persia, the Middle East, and parts of Europe.

The Chinese Dynasties (Han, Tang, Qing, etc.) that expanded China’s borders through conquests, including Tibet, Xinjiang, and Manchuria.

The Japanese Empire that colonized Korea, parts of China, Taiwan, and occupied Southeast Asia during World War II.

The Russian Empire/Soviet Union that expanded into Central Asia, Siberia, parts of Eastern Europe, and Alaska (later sold to the USA).

The Zulu Kingdom who expanded in Southern Africa, subjugating neighboring tribes.

The Ethiopian Empire that conquered various kingdoms within what is now Ethiopia.

The Colonial Powers (Britain, France, Belgium, Germany, Portugal) partitioned and ruled over nearly all of Africa.

Maori Tribes in New Zealand conquered and displaced other Polynesian tribes.

Polynesian Expansion colonized the Pacific islands, often displacing or assimilating previous inhabitants.

European Colonization of Australia: British settlers took land from Indigenous Australians.

Surely, it is impractical that we demand that current nations and peoples return land to those who lived there centuries or millennia ago. Modern borders are often built upon layers of historical migrations and conquests, making a clear-cut solution impractical. We can't use moral rubrics of today to judge past (and that's talking centuries an millenia ago) actions.