Two First Nations chiefs are accusing Alberta Premier Danielle Smith of “attempting to manufacture a national unity crisis” and are calling on her to stop stoking the fires of separatism. Smith’s government has proposed legislation that would make it easier for citizens to call for a referendum on seceding from Canada. Chief Sheldon Sunshine of Sturgeon Lake Cree Nation and Mikisew Cree Nation Chief Billy-Joe Tuccaro say in a letter that the premier is enabling a referendum on separation, and a “fanatical cell of individuals,” when Canadians need to unite against U.S. tariffs. Smith has said it would be up to Albertans, not her government, to put the separation question on a ballot and that she supports Alberta sovereignty within a united Canada. But the chiefs say even if Smith…