I’m not sure this is really a solvable problem but at the end of the day, DuckDuckGo is a for profit corporation. Privacy is more of a marketing angle than something they actually care about. Last year they allowed Microsoft to track mobile users of their “privacy focused” browser which is obviously against their stated purpose for existing. They backtracked after facing backlash but it’s done lasting damage to their reputation. They also got caught by a security researcher, they weren’t at all upfront about it. I think that’s enough to shatter any hope that they are genuine or trustworthy.
Of course it’s not at all surprising but it’s still particularly egregious and should be called out.