My boss asked me, he's heard it from me and now his brother-in-law and he tried googling it and of course sees all the "fact check" stuff that no, mRNA doesn't change your dna.
There are a lot of Mikovitz and Tenpenny videos out there but he'd probably be more receptive to something in print.
They (the MSM etc) are actually saying that mRNA doesn't change your DNA.
Here are a few items I think might be useful for your case.
April 22 2021: REPORT: Pfizer Vaccine Confirmed To Cause Neurodegenerative Diseases
https://nationalfile.com/report-pfizer-vaccine-confirmed-to-cause-neurodegenerative-diseases/
““In this paper the Pfizer COVID-19 vaccine was evaluated for the potential to induce prion-based disease in vaccine recipients.” Prion-based diseases are, according to the CDC, a form of neurodegenerative diseases, meaning that the Pfizer vaccine is likely to cause long term damage and negative health effects with regards to the brain.” “This is especially concerning since the Pfizer vaccine is an mRNA vaccine, an untested type of vaccine which creates new proteins and can actually integrate into the human genome, according to a report from the National Library of Medicine. In other words, degenerative brain conditions may appear at any time in your life after receiving the vaccine.”
https://pubmed.ncbi.nlm.nih.gov/33330870/
In support of this hypothesis, we found chimeric transcripts consisting of viral fused to cellular sequences in published data sets of SARS-CoV-2 infected cultured cells and primary cells of patients, consistent with the transcription of viral sequences integrated into the genome
https://www.medalerts.org/vaersdb/findfield.php?IDNUMBER=1166062
Patient received second dose of Pfizer vaccine on March 17, 2021 while at work. March 18, 2021 her 5 month old breastfed infant developed a rash and within 24 hours was inconsolable, refusing to eat, and developed a fever. Patient brought baby to local ER where assessments were performed, blood analysis revealed elevated liver enzymes. Infant was hospitalized but continued to decline and passed away. Diagnosis of TTP. No known allergies. No new exposures aside from the mother''s vaccination the previous day.