White supremacist anti-Muslim narratives generally refer to Islam as an invading force
that isn’t just incompatible with Western society, but is also an active threat to Western
society and cultural norms. In this context, white supremacists have used Crusader-themed
imagery and rhetoric, like the Jerusalem Cross, the Knights Templar and “Deus Vult,” as dog
whistles to promote anti-Muslim hate
It’s been coopted by the far right for a while now. Pete is not a Polish Babushka, the symbol has a different meaning to him, here’s specific reference to the Jerusalem Cross amd deus vult here. https://www.mccaininstitute.org/wp-content/uploads/2021/10/white-supremacy-and-anti-government-groups-read-ahead-materials.pdf