And corporate taxes are just taxes on people, in the end (the owners of the shares). If there are fewer people working and more people to support, things just get harder, absent large productivity increases or immigration of young workers.
It's not like the people running these corporations are all evil and out to ruin people's lives. People behave based on the incentives laid out in front of them and the current combination of capitalism and laws incentivizes the behavior we are seeing.
True, but the same people also largely support programs and politicians that preserve or extend those incentives. They're not innocent bystanders.
Pension systems own the FAANG companies. For example, in the US, CalPERS manages a third of a trillion dollars. Two thirds of that is in equities such as Apple.
And here is where it gets funny. I wonder how pension systems would look like if they were supported by the billions of dollars that especially FAANG but also other huge megacorps such as IKEA, McDonald's, Burger King "creatively avoid" in taxes. Or if minimum wages were set so high that a pension built on a life of minimum wage were enough to live on in old age (this is a problem that currently runs high in Germany, as many old people have not enough pension to get by and so require social welfare)?