"Illegal immigrants have gotten a pass" isn't true.
Is the Biden administration 'not even testing' migrants released in the U.S.? (statesman.com)
"COVID-19 testing protocols have existed at the border under both the present and former administrations. Testing is done via a patchwork of federal agencies, local governments, organizations and contractors at various stages of the immigration process.
In April, the U.S. Department of Homeland Security told PolitiFact that it works with state authorities, local authorities and non-governmental organizations to ensure that “100% of noncitizens” are tested for COVID-19 "at some point during their immigration journey." The agency also has told PolitiFact that a negative coronavirus test is required by the federal government before entry to the U.S."
Once again, an interaction with a conservative consists of showing them that what they're saying simply isn't true.