I’m going to make this very clear from the outset: Google has every right to refuse to crawl/link to my content. It’s their choice as a company to decide what content is acceptable.
Google has decided that certain content is not appropriate for the masses.
That said, I do believe a government database should also exist that mirrors the functionality of Google, but by law is required to accept data from any US source. It should be searchable by citizens and should not be censored. In the very least, it’s likely the opposing databases would cover the gaps and produce a whole subset of internet search results.