The problem is, not everyone feels that way. A lot of folks feel like "what happens if I don't follow the rules? they'll tell me I need to leave, in which case I will and have at least enjoyed it for some of the time".
That's why rules without enforcement doesn't really work - and that is the situation we have right now including at some resorts like VGF where pool hopping was never allowed in the first place!
At the very least, ensuring that all the gates properly lock with magic bands would be a great start! And by the way, if they wanted to make pool hopping a Direct Perk or a DVCY+ perk that would be just fine - if it were locked under the magic bands, you could add the access into the bands for those who qualify.
They should do the same with the out buildings at VGF. No reason for them to be open to the public. It is a security concern.