I have nothing against any meta search engine, they are very useful, and I use them primarily as well.
However, they are not a true alternative, because they depend on third-party services. The same as Invidious is a very useful, but also not an alternative to YouTube itself, just a different user interface.
My shower thought since I watched Star Trek: In a world where universal translators are ubiquitous, do babies even need to learn any common language, or do they each develop individual languages and let the UT handle the rest?
UT translating baby noises into articulate language, should have been in an episode.