He comes from a peasant family with a leftist tradition, in which there were militants of the Communist Party and also a grandfather, Alfonso Artés Rosselló, with an anarchist tendency.

In 2017, Artés claimed that it was necessary to put an end to the current Constitution of Chile, and convene a Constituent Assembly, through which the people would be able to build the foundations of the country, in order to fulfill his government program.

He has publicly manifested his admiration and support to North Korea,[6] claiming that Kim Jong Un has led the country in a proper manner, in which social and political issues have been well handled.

[2] In January 2019, during a demonstration by Venezuelans in Chile against the government of Nicolás Maduro, members of the Communist Party (Proletarian Action) came to the scene to dissuade protesting immigrants.

Artés was filmed saying "you are in Chile, and you have no right to be here in the national territory and to insult Chileans" and "Go and kiss the shoes of Yankee imperialism (...) you are a gusano, you are scrawny."