Disney is very picky about firearms and does not authorize anyone, including LEO unless on duty and assigned to Disney to carry within the ticketed areas. They place this ban based on the fact that it is private property with “contracted” admission (ticket) and you have agreed to their terms. There is no posting or other notification. Of course, as it is not a violation of state law, if caught you would be facing trespass charges at worst.
Your bags will be searched, sometimes intently, sometimes very passively. Your person will not be searched and there are not metal detectors. Many have carried into Disney, however, many drive 100 mph that does not make it any more “officially” allowable. The decisions are yours. If you decide to carry into Disney just realize that if caught you will likely not be shown a whole lot of respect and you will likely be immediately expelled from the area with a permanent order not to return (this does carry the weight of law). Your family or party may simply be left to find you outside the park and dealing with the embarrassment will be your problem. “Sorry Jimmy, grandpa is not allowed in there anymore” is tough to explain as most young kids don’t give a damn about RKBA vs RSMM (Right to see Mickey Mouse).
If you do decide to carry, what are you going to do with a firearm? First of all, you will see the parks are wall to wall people so a “clean” solution without a likely collateral danger in the background would be nearly impossible. Add to that the realization that most of the walls you see at Disney are “sets” much of it just Styrofoam and Stucco so a normal handgun round may penetrate through many rooms. Now every thought of a shot is a blind shot, and since you are firing an unauthorized weapon on private property you will find the full weight of any liability squarely on your shoulders with no legal protection at all.
From my standpoint, I am not certain I would carry at Disney without their restriction just because I do not know if I could ever pull the trigger literally shooting blind into a crowd. I think that self-defense in these situations call for much more subtle, less than lethal solution carried on person. A stun gun? Pepper Spray? Pepper Blaster? None are going to be officially sanctioned so don’t show them to security and all could still get you booted from the park, but I believe they would be a bit more understanding and at least they are viable means of self-defense under the conditions.
Disney security is better trained than most think and they are well equipped to handle situations in the parks. As it is a restricted entry area, things like strong arm robbery, assault, etc are not their major problems as escape is so thwarted. The big problem in Disney is child abduction attempts. As you are walking through the parks and suddenly every fifteen feet or so some really friendly Disney staffer in business dress says “how is your visit?” or some other overly friendly greeting WATCH THEIR EYES!
Especially if you have a little kid in your arms, you will see their eyes immediately gravitate to the child’s shoes. Many abduction attempts may involve trying to change the child’s appearance including clothing, haircuts, hair dye, etc. However as shoes vary so much in size and are bulky, most perps do not carry an assortment of shoes so the first and most important piece of information wanted from the parents is what shoes were they wearing.
Disney office types are trained to observe and report items like this and tell tale signs of nervousness, fear, etc (just like why Security spends more time looking at you than at your bag during bag check and why the “no bag” gate is very narrow and you are almost always greeted by a uniformed security officer (sometimes with a uniformed Deputy hanging out). None of this is by accident.
Of course in today’s world there are “major” actions to be concerned with, but you with a gun is not going to do anything to prevent that either so I recommend you take the logical approach and simply enjoy your visit.