We’re not death phobic, we’re death complacent:

Our culture is routinely diagnosed with an excessive fear of mortality. A calm look at the evidence tells a different story
…
Take the ready acceptance of the ubiquitous story of ‘billionaires who want to become immortal’ and how it reflects our collective fear of death. In reality, of the approximately 3,000 billionaires in the world, only about 30 invest in anti-ageing science

It would be a blow to the terror management theory people, if true. Though their research is often enough of a blow.