The most common argument used in defense of mass surveillance is ‘If you have nothing to hide, you have nothing to fear’. Try saying that to women in the US states where abortion has suddenly become illegal. Say it to investigative journalists in authoritarian countries. Saying ‘I have nothing to hide’ means you stop caring about anyone fighting for their freedom. And one day, you might be one of them.
I tried arguing against this, but it’s no use. I tried pointing out how something can be branded illegal retroactively, like 20 years down the line, I tried the “give me your credit card info” approach, nothing took. 90% of the time the counter-argument is usually something to the effect of “big companies know everything about me anyway”, which is just guessing on their part.
I’m just going to take care of my own privacy, because I’m clearly in the minority (present company excluded, of course). Almost everyone I know disregards online privacy completely, so I’m done trying to get a dialogue going with these people; it’s every man for himself. The only way online privacy will become a hot topic among laymen is when something nasty happens and at that point, it will have been too late.