Safe in the short term maybe...but we just don’t know down the road.
Short term might be all we need to stop the spread enough to get it under control.
It’s not whether or not the vaccine is perfectly safe that is the question— nothing is perfectly safe. The real question should be: which is safer, being vaccinated or not being vaccinated? We know the risk of not being vaccinated, namely contracting COVID. We have a pretty good idea on the fatality risk from COVID. We also have a pretty solid data set on the vaccine as well. It’s highly effective and major side effects are very rare. It’s been tested on tens of thousands of people. If it were unsafe, there should have been a significant number of test subjects having serious issues. That hasn’t been the case. Certainly IMO the vaccine appears safer than not being vaccinated. But hey, this is still a free country (for now). If you think being unvaccinated is safer, well that’s more doses available for those of us who want it.
And as for long term safety, we don’t know the long term effects of a case of COVID either. I would take my chances on a vaccine over a viral infection though. Again if you disagree, that’s your choice.