It's easier to get one vaccine a year than to check 50 times (to be generous) a year. Also that would only tell you that you have a tick and then you need to check again that you see the red swelling to know you are infected. Then you need to get the antibiotics and then you need to hope that works.
Also I expect/hope vaccinations will develop into some kind of regular maintenance thing like software updates. With the mRNA technology that would be really easy. Scary for many people, also, but really, why not? Every year there are scientifical reasons to update the immunization for almost everyone against certain antigens. This way we may eliminate many strains of Sars-Cov-2, Influenza, other cold viruses, measles, maybe even HIV and the Herpes family eventually.
"It's easier to get one vaccine a year than to check 50 times (to be generous) a year."
This isn't a replacement, you still have to check even if you're vaccinated.
"Also that would only tell you that you have a tick and then you need to check again that you see the red swelling to know you are infected."
Wrong. The red swelling does no occur in all cases. You can be infected without it. Generally, one should have the tick examined to see how long it was attached (if they don't know).
"Then you need to get the antibiotics and then you need to hope that works."
You would need to do this even if you have the vaccine (assuming the tick was attached for longer than 24 hours or there's reason to believe it was interrupted from a previous meal and then but you - testing the tick will tell).
Your "refutations" don't actually contradict anything I said, I just don't dump everything that comes to mind or that could come to mind into every HN comment I write.
Prevention is always better than a cure, so yes you still have to check. Yes I know the Erythema is optional. Yes I know a vaccine isn't 100% effective. I'm actually a licensed veterinarian you are trying to mansplain here...
Also I expect/hope vaccinations will develop into some kind of regular maintenance thing like software updates. With the mRNA technology that would be really easy. Scary for many people, also, but really, why not? Every year there are scientifical reasons to update the immunization for almost everyone against certain antigens. This way we may eliminate many strains of Sars-Cov-2, Influenza, other cold viruses, measles, maybe even HIV and the Herpes family eventually.