There’s a big difference between trust in a process that has so consistently yielded results vs something like faith or political adherence. It’s about the foundations upon which those results lie more so than the belief themselves, and also an amenability to update beliefs. If humanity really gets something wrong about how the natural world operates it will usually be revealed. The trust ergo is largely warranted, even if the human execution of said process is flawed.
The canard that every individual has to maximally recapitulate the entirety of hundreds of years of human discovery is just absurd. Trust exists at all levels of human intellectual discourse.