The leader of the group is a transwoman. I don't understand why she would take up right wing causes, when the right despises women like her.
She and her defense team talked about it after her conviction:
https://www.startribune.com/mosque-bomber-now-identifies-as-a-woman-says-right-wing-blogs-fueled-inner-conflict-leading-up-to-at/600090371/
Emily Claire Hari previously known as Michael Hari is asking a judge to legally acknowledge her transgender identity. Hari, 50, says a combination of gender dysphoria and right-wing misinformation fueled her "inner conflict" during the time that she was convicted of bombing Dar Al-Farooq Islamic Center in Bloomington.
"She strongly desired making a full transition but knew she would be ostracized from everyone and everything she knew," Hari's defense attorney, Shannon Elkins, wrote in court documents. "Thus, as she formed a ragtag group of freedom fighters or militia men and spoke of missions to Cuba and Venezuela, Ms. Hari secretly looked up 'sex change,' 'transgender surgery,' and 'post-op transgender' on the Internet. As she purchased military fatigues for their 'missions' she also purchased dresses and female clothing for a planned trip to Bangkok, Thailand, for male-to-female surgery. She was living a double life."