Nonsense. Art is strongly related to culture, and culture is strongly related to politics. The fact that art these days is very much viewed in a political frame, in the US in this case, is because politics have taken a huge role in US culture. Like, it's all American people seem to be thinking about these days.

But no, art is not political in itself. Art, by some definition, is a thing whose meaning is created by who experiences it. Art might look political if the observer looks at it in a political point-of-view. But in reality, tinned faeces [1] are not a political statement nor a reflection on the human condition. They are literally just shit in a box.

1: https://en.m.wikipedia.org/wiki/Artist%27s_Shit