You're making the more outlandish claim -- that safety hasn't been proven -- and the burden is on you to produce your contrarian evidence.
Obviously you can't and won't do that if you're being contrary due to lack of evidence rather than abundance of it.
The vaccines were assumed unsafe until many thousands of people had received them.
The thing people are rejecting is your rejection of the sound science that went into proving the safety of the vaccines.
At this point, hundreds of millions have taken them and they're still proving themselves to be safe.
If you have evidence, cite it. You don't have any good evidence, which is why you haven't done that yet.
You're making the more outlandish claim -- that safety hasn't been proven -- and the burden is on you to produce your contrarian evidence.
Obviously you can't and won't do that if you're being contrary due to lack of evidence rather than abundance of it.