No number of government promises about how they will act in the future are credible. Never accept promises of future good behaviour.
This is why we must never register our firearms or ever accept that registering them is somehow beneficial. Gun registration is gun confiscation.
When the NY City government initially passed the law to register all handguns, they promised that they would not use the list to confiscate them.
They didn’t lie - it was a different City Council a few years later that used the list to confiscate them.