Inuit

The Indigenous people of the arctic regions in Canada, Greenland and parts of Siberia are known as Inuit. In Inuktitut, this means “people".

As one dictionary has put it:

The preferred term for the native peoples of the Canadian Arctic and Greenland is now Inuit, and the use of Eskimo in referring to these peoples is often considered offensive, especially in Canada. Inuit, the plural of the Inuktitut word inuk, “human being,” is less exact in referring to the peoples of northern Alaska, who speak dialects of the closely related Inupiaq language, and it is inappropriate when used in reference to speakers of Yupik, the Eskimoan language branch of western Alaska and the Siberian Arctic.

Since Inuit is plural, the use of "Inuits" for plural is incorrect.