Not an ideological drive, i.e. not driven primarily by ideology. Driven more by a primitive will for my physicality to survive beyond my physical lifetime.
So mostly an attempt to address the fear of death?
Not fear. Just the certainity of death.
How does persistence of DNA address death?
DNA = A blueprint for something that makes me unique, and the only known way to travel through time, into the future — in the most sentient form I know of — as a ”not me, but still me” human.