I disagree. As much as we hate to admit it there are parallels to be seen. It always starts out as subtle and then it slowly escalates as we become immune to the changes. We are not at the level of those terms but there is a comparison in how things start. "Those who cannot remember the past are condemned to repeat it". George Santayana
What parallels? Government intrusion into the lives of its citizens versus changes in policy by an entertainment company? Government busting into your home uninvited and unannounced versus voluntarily going on a vacation at a place that has publicly announced these policy changes? Give me a break.
The privacy you are giving up is not being replaced with enhanced security.
This is not a privacy issues. Your constitutional rights do not extend to WDW property as far as it relates to actions taken by their employees and their policies. If there were reason to suspect that these policies were being put in place at the direction and for the benefit of the police or some other government entity, then you have a privacy argument.
What this really is a change in the terms of your contract with Disney that you can either accept or refuse. You don't have a right to a WDW vacation.
ETA: I do not personally like this new policy. Whenever DW and I go to a hotel, the first thing we do is put out the DND sign and only take it down when we leave, or really need TP.