ADE is a possibility with any vaccine, or even some diseases...
However, stage 3 trials are designed to test for this.... And the existing vaccines did pass them.
That doesn’t mean it could not happen... there is no 100% fullproof way to know ever.
I am antivaxx for many reasons (e.g aborted fetal cell usage, distrust in Government, injured children, my military vaccine injuries, etc.). I have a suspicion that vaccine manufacturers clearly knew the risks going in based on previous studies. What if ADE acts as a kill switch that can be triggered and suppressed? This gives a tremendous amount of power to those who hold the keys; the wet dream of every tyrannical Government in history. This may explain why everyone is being forced down to age 2, and the coming 6 month boosters