Short of accepting, without question, any and all globalist ideas, claimed to be for "protection," clear answers to those questions about long-term safety are urgently needed
The mainstream media (radio, TV, newspapers) are full of reports of the successes of COVID-19 "vaccines" in reducing the number of new "cases" here and in many other jurisdictions.
However, to this date none of those "mRNA-type vaccines" (like from Pfizer-BioNTech, Moderna, Novavax) and, perhaps, other manufacturers/providers) have received an unequivocal "stamp of approval" by any government entity (e.g., the U.S. Centers for Disease Control [CDC] and U.S. Food and Drug Administration [FDA]), or by Canada, or by Europe’s EMA (European Medicines Agency).
The pictures above will show that. Read the label carefully: Pfizer-BioNTech vaccine vial with the label stating: "For use under Emergency Use Authorization"; Source: Wikipedia (page last edited on 6 May 2021).