This is how democracy works pretty much everywhere. You vote for parties or people based on their policies.
This becomes immediately obvious when you vote for a party who fails to fulfill, or even go against their policies. Then for the EU there’s an additional level of abstraction for the commission. At this level, the voter is far removed from their initial vote and are completely powerless.
In "standard" party democracy there is just nothing that can be done. Calling it democracy as in rule of the people is a disgrace.