The first part of your statement is false: “...not a vaccine by any pre-2020 definition.” mRNA vaccines have been studied for other diseases in the past (e.g., Zika and rabies), but only experimentally and were not approved for widespread use. The second paragraph of your post is correct, AFAIK.
He's absolutely correct.
They redefined the word *vaccine* to now include mRNA treatments.
Merriam-Webster Dictionary Quietly Changes Definition of ‘Vaccine’ to Include COVID-19 mRNA Injection
“The first part of your statement is false: “...not a vaccine by any pre-2020 definition.” mRNA vaccines have been studied for other diseases in the past “
Those experiments were without any level of success: All the test animals died and no vaccine properties were created. They did not get the mRNA gene therapy to produce a vaccine type response.
So, Travis, is still right.