You're aware of the privacy implications but think people talking about avoiding people who use them are proposing dumb arguments? I don't follow your logic.
How does not talking to people will solve privacy problems of the new technology? Are you assuming that Meta will see that you ignored your coworker with smart glasses and shut down the project, along with Apple and other smart-glasses manufacturers? I'd love to follow your logic, if you can't follow mine.
Ostracization has worked before. And ostracization can lead to decreased sales, which they will definitely notice. If engaging with people to talk about privacy implications involves sacrificing your privacy, I feel that it is reasonable approach.
It's like if I had to be punched by someone to talk to them about why them punching people all the time wasn't alright, then I'd find it very reasonable to just not associate with that person.
I think you're outlining a relationship with people who actually want to actively engage in these concerns in a responsible manner, and these platforms have definitely demonstrated the opposite and a willingness to use that engagement to inflict the very behavior you want to moderate.
Except of hope that it will decrease sales (which is still not solving privacy issue), can you see other possible negative effects of the ostracization based on the gadgets they use?