Those aren’t comparable at all. DNT is a header that required cooperation; nothing to work around. privacy.resistFingerprinting actually solves fingerprinting,

Those aren’t comparable at all. DNT is a header that required cooperation; nothing to work around. privacy.resistFingerprinting actually solves fingerprinting, and if it were enabled by default it would be incredibly effective. (It won’t be anytime soon, because it breaks many features that average users rely on, via average websites - but individual aspects of it could trickle in.) If you were worried that determined parties would develop new tracking technologies as a response, rest assured that they’re always doing that.