Do you oppose security guards in general, or only off-duty police officers working as security guards? I ask because as far as I can tell the practical alternative is to hire some guy who flunked out of the police academy and became a security guard instead, which seems... worse.
Personally I navigate life without hiring any security guards. But I recognize that some people and/or circumstances might have legitimate need for one.
I did that once with a Glock 20. I didn't care if went over well; no way I'm gonna receive a large corporate order and move it to the parking lot at night any other way. No way to tell who had access to the order info in their system, though I will say I'd trust Apple on privacy far more than I would most other hardware companies.
Personally I navigate life without hiring any security guards. But I recognize that some people and/or circumstances might have legitimate need for one.