No, you cannot. The FFCRA creates a discrimination claim which makes it unlawful for any employer to discharge, discipline, or discriminate in any other manner against an employee who takes leave in accordance with the Act.
New Jersey legislation prohibits employers from terminating or demoting employees who take, or request, time off due to an infectious disease, such as the coronavirus, that could affect others at work based on a written recommendation of a doctor. New Jersey legislation also precludes an employer from refusing to reinstate the employee to the position held when the leave commenced with no reduction in seniority, status, employment benefits, pay or other terms and conditions of employment.