Mass automated data collection and automated analysis are probably the biggest threat to freedom in the present day.
Funny, when I watch the news I see freedom being taken away by authoritarians, not people tracking who complains about window seats, or what pizza place you like best.
And here I was thinking that flooding the zone with fascist bullshit, an office that's entirely above scrutiny, and their violent, unaccountable private army was the biggest threat to it.