I think it’s a combination of things.
People were emotionally exhausted from the pandemic, and then there was no break before the cost of living crisis.
I think a lot of people accidentally developed a drinking habit during lockdown which is proving hard to kick. Alcohol definitely affects mood and outlook.
Our societal immersion in the 24 hour news cycle has us all swimming, mentally speaking, in a constant state of crisis. This isn’t helped by the fact that there are actual genuine crises being reported in the news, not just a few smaller things being blown out of proportion. The Ukraine war, the cost of living crisis, and the climate emergency are genuinely huge issues, and the fact we can’t (or perhaps don’t) really mentally get away from the reporting means that we are more on edge.
Thanks to social media, even non-emergency issues are being blasted into our brains at high volume. We are constantly being told or shown how we are not enough… not woke enough, not chilled enough, not wealthy enough, not reading the room enough, not parenting enough, not looking after our bodies enough, not financially disciplined enough, not socially aware enough… it is endless. This wears on people and makes them feel both hopeless and angry. Adding insult to injury is the fact that our culture is so polarized that it is harder and harder to process anything of importance with people in a way that doesn’t raise at least one person’s hackles.
Dealing with of the above is exhausting, and when everyone is exhausted all at the same time, people are less able to offer support to one another. This means a lot of the population is swimming in this soup of emotions alone.