Why do you think need to make money ? VC are not PEs for a reason. a VC have to find high risk/ high reward opportunities for their LPs they don't need to make financial sense, that is what LPs use Private Equity for.
Think of it as no different than say sports betting , you would like to win sure, but you don't particularly expect to do so, or miss that money all that much for us it $10 for the LP behind the VC it is $1B.
There is always few billions every year that chases the outlandish fad, because in the early part of the idea lifecycle it not possible to easily differentiate what is actually good and what is garbage.
Couple of years before it was all crypto, is this $1B any worse than say roughly same amount Sequoia put in FTX or all the countless crypto startups that got VC money ? Few before that it was kind of all Softbank from WeWork to dozen other high profile investments.
The fad and fomo driven part of the secto garners the maximum news and attention, but it is not the only VC money. Real startups with real businesses get funded as well with say medium risk/medium rewrard by VCs everyday but the news is not glamorous to be covered like this one.