Although anecdotal, I personally know of someone who developed a serious heart condition after vaccination, and their issue was not linked to vaccination by their doctor as they claimed that it just a "coincidence". Not sure how severe symptoms within 24 hours are a coincidence...
Regardless, you have the freedom to assess the risk-benefit ratio and make the decision that you deem best for your health. I respect that. However, coercing others to accept the risks or lose their job - that I find highly unethical.
Your employer isn't obligated to pay your higher healthcare costs because you were duped by antivax conspiracy theorists. In fact, your employer can use the fact that you were swayed by those blogs as a signal that your decision-making ability is poor.