Back in 2019 when this was written, the US was economically doing well. Unemployment was at a 15-year minimum (1), net compensation was increasing for the middle/lower classes at the fastest rate in 20 years (2), and productivity was up. The economic crash started in Jan/Feb 2020 upon Covid worries, and then just kept on going with supply and demand shocks.
None of what you're saying implies things were good in 2019, though. It just implies things were getting better compared to the last two crashes we'd had, in theory, for some people.
I think people have a right to feel angry, and I don't think the pandemic is the thing that caused it.
Have they ever been good? I come from a long lineage of people who had a parent die while they were still children. Sure doesn't seem like the good's been equitable or balanced.
The US Gini coefficient has been rising for 70 years, but life expectancies are high. So yes, better than ever for the median person, but also less equitable than ever.
I think people have a right to feel angry, and I don't think the pandemic is the thing that caused it.