Theologically, there is a difference b/w profanity & cursing. To curse is to pronounce harm. For a President to write off whole countries as "sh!&holes" in the course of advocating policies of discrimination and inequality is cursing.
Sens Corker, Rubio & others have said Trump is unstable, yet they are willing to side w/ him on a tax bill that will hurt poor ppl, undermine healthcare, & raise taxes on working people. Trump alone is not the problem; it's the greed & immorality of Congress.