I don't think the opposition was using 'its a tax' as argument to cancel ACA, since the SC Ruling that saved ACA was made by saying congress is allowed to creat

I don't think the opposition was using 'its a tax' as argument to cancel ACA, since the SC Ruling that saved ACA was made by saying congress is allowed to created taxes, and this was a 'type of tax'. If calling it a tax saved it, that would then not be a good argument to get rid of it.