If I walked out because of my employer not separating a machine amid Covid 19 and I I asked for a leave and was denied ? She lI?

Many facts are missing here. Please contact an employment law attorney in your area and disclose all of the relevant facts involved. However, based on the limited info you provided, I am not seeing and wrongful termination situation.

This question does not provide enough detail to give a more specific answer than than you should speak with a labor and employment attorney as soon as possible. It is possible, if you complained about unsafe working conditions (as seems to be the case), that you would have claims against your former employer. You would need to speak with a labor and employment attorney to better determine your rights and remedies.