Exactly! And nothing tangible has come of it. But conspiracist are parroting how crashes have happened in several countries and there's a coordinated multiple nation effort to hide the alien truth - recovered crafts, alien bodies, reverse engineering efforts etc.
Tangible to who though? The public? It would be like the US sharing the SR71 to the public, UK sharing their secret shit, and also Russian while it was in development. Anything potential piece of tech from another planet is a viable weapons platform first and foremost and I would wager it would take decades or centuries to reverse-engineer it. I don't see them openly talking about it or sharing how far their progress is.
I don't see many claiming that concealing of info is a worldwide effort. Seems more like a logical thought that this effort would be independent. You have crazy tech and so do we, neither of us discuss it because it shows our cards. That's not the same as all these countries having UAP programs for decades either, that's a very different and solid point.
Even though I think Lazar is full of shit, the idea that the government has to sit on a potential craft until technologies improve makes sense to me. It would be like gifting a 1700s-era scientist a consumer drone(even a cheap China one). Good luck with that for about 150-200 years!
It's not impossible that we are involved with these visitors in some way and we have their shit. Most of it is probably bullshit of course. Bodies etc seems far fetched, but I've been conditioned by scifi films there.
The other thing I'd like to know concerning your Grusch point. Elizondo and those guys were all part of a different time frame in the military, and there are other guys going back further than that. So how is it that every 10 years a different set of UFO wackos(with top secret clearances) infiltrate the government and make these same claims? That seems like a bizarre coordinated effort that spans different nations and eras.