Disney security theater is ineffective, super intrusive and frequently offensive. Last week a friend of mine had his medication bag tipped out and inspected at the Epcot gates to check it wasn't illegal drugs. That is taking above and beyond way too far in my view.
They should purely be checking for weapons, nothing else. We're not boarding a flight, we're boarding a steam train or Peoplemover, so checking for liquids or smuggled contraband is way, way out of their job remit for these wannabe TSA bullyboys.
On the matter of guns and knives, there are so many ways a determined terrorist could cause chaos at Disney, detectors or not - even a resort, the Boardwalk, or Disney Springs has plenty of targets without security checks, and there are plenty of ways to get something into a park illicitly (not going to give anyone ideas with details) if you really were determined.
That doesn't mean there should be no checks, if they stop a few concealed carries that's all good, but the hassle they put everyone through is total overkill compared to the actual risk mitigation it provides.
