There is an important difference to recognize between your ISP inspecting network packets 24x7 to target and collect your DNS queries vs you handing the infomation directly to them.
Sacrificing privacy for speed is a bad tradeoff in this instance as DNS request speed is over emphasized in almost all cases (case in point classifying 15ms vs 25ms as a "problem").
If a site is not already cached at the OS level than a typical DNS lookup from the central / east coast US to EU takes ~120-130ms. 8x slower may at first sound really bad until you pause to consider that the unit in question is milliseconds.
Your web browser and the webpage itself are generally doing far more damage to your page load times than the DNS lookup.
People who know they are being watched change their thoughts and behavior either consciously or subconsciously.
If the government had cameras inside your house set to record 24x7 would you act any differently than you do today? Are you breaking any laws inside your home, if not, what are you trying to protect yourself from by refusing access?
Have you ever avoided visiting a website, searching for information on certain subjects, or held back writing something online that you felt strongly about because you were afraid of possible repercussions in the future?
If yes, then that is an example of the government eroding our rights which are protected by the first and fourth amendments. The right to privacy online is just as important as the privacy you enjoy (take for granted?) within your own home.