There's only one way an honest person can handle this. (which you've already fucked up)
First, your employer does not have the right to know your medical business. You're not disclosing if you're vaccinated for hepatitis, mumps, or the flu, correct? SO HOW CAN YOU THINK IT'S YOUR EMPLOYER'S BUSINESS TO ASK ABOUT THIS?
Now that you let them know you're unvaxxed which you never should have disclosed, it's well within your right to tell them to pound sand when they come around with test kits. Politely state you won't be submitting to an AIDS, hep, measles, or any other test, as well because YOUR MEDICAL CARE IS BETWEEN YOU AND YOUR DOCTOR.
Here, man...do some reading so you understand the subject then tell your boss to fuck off if he thinks he can dictate your medical care.
https://off-guardian.org/2021/08/03/repeat-after-me-the-pcr-tests-dont-work
https://www.redvoicemedia.com/2021/07/cdc-exposed-new-evidence-about-pcr-tests-will-blow-your-mind/
https://libertysentinel.org/covid-19-the-pcr-test-no-pandemic-only-junk-data
(post is archived)