There are a few examples I use when I hear such ignorant statements: 1. Not caring about privacy cuz you’ve got nothing to hide is like saying you don’t care about freedom of speech cuz you’ve got nothing to say. 2. If you don’t care about privacy, why don’t you poop with an open door, for everyone to observe?

Because I don't want to rest of the house to smell?

A different argument that appeals to some is that you might not have something to hide, but what about the people who do? For the greater good of society, whistleblowers are needed to expose malfeasance by the corrupt and it's going to make it much harder for any of them to come forwards if their reward is literally exile to Russia. If you're in support of a slow slide into dystopia, go ahead and argue against all privacy. Whether a given situation rises to that level is an different but adjacent topic, but appealing to something some people can believe in, such as not letting the rich and powerful get away with being utterly corrupt in their dealings is a way to find common ground, with some. not everyone cares about that though, but it's an additional argument for privacy.

The problem is, I could not formulate anything in this way in a professional setting. I want my co workers to understand because I feel a bit uneasy working with people who do not but I also don't want to scare them.