Because the world has gotten markedly more shit for the vast majority of people, and YC is directly one of the reasons. Most of us have seen our disposable income drop, seen bullshit companies making connected dog feeders get funded dozens of millions by money-centralizing VCs, and overall have seen the world get more and more unfair, unbalanced and unjust. Major climate disruption is underway, wars are hitting all over the globe and governments are all getting more and more undemocratic.

Needless to say, the world doesn't exactly lend itself to positivity about yet another fucking startup promising you fusion powered dog feeders.