1) Dark patterns do empirically work, that's the whole point.
2) Market won't magically shift - they work based on homo sapiens basic psychology, and that won't change so soon. However, dark patterns can (and are) reduced by making them illegal - effective consumer protection / truthful advertising laws can mitigate them. For example, if 'I agree' opt-out boxes are legally considered invalid, then it makes sense to use opt-in subscriptions; similarly for other [mis]representations.
2) Market won't magically shift - they work based on homo sapiens basic psychology, and that won't change so soon. However, dark patterns can (and are) reduced by making them illegal - effective consumer protection / truthful advertising laws can mitigate them. For example, if 'I agree' opt-out boxes are legally considered invalid, then it makes sense to use opt-in subscriptions; similarly for other [mis]representations.