If people were given a choice to have security and privacy over not, then the vast majority would surely choose it.
That doesn't apply here. Focusing on privacy and security or not for a company is orders of magnitude different. It costs more to do so. If people were given a choice to have security and privacy with higher price, I'm sure lots would ignore it. 
I also disagree. If the prompt for "with" and "without" security/privacy was accurate (as to what you would likely to be susceptible to if you didn't opt in for security and privacy) AND if it actually worked to opt in for this without a doubt, I believe more people than not would opt in. In an ideal world, this would be a priority of a company offering proprietary software.
In an ideal world, there wouldn't be security, because there wouldn't be cyber attacks either. If that sounds extreme, in an ideal world, people would value their privacy and security more than they do now.