You are right that if gross salaries were raised to include the Employer half of FICA as part of the "100% paycheck" promise as the author states, then there would be almost no cost savings to business due to the enactment of the FairTax, so prices would go up by almost the full amount of the 30% tax.And the author of the link I posted stating that the employee would get the employer half after "all payroll taxes" were removed, is also the author of the Fairtax, as pigdog was so proud to point out.
But you're welcome to say that since it fits the scale and tenor of the many incorrect things you've posted over many years.