Your ideas are to me very fantastic. I find it difficult to follow these imaginations of yours because I do not cherish them myself and am only able to reconstruct from films/books what you might mean. But I must admit I don't understand them.
Why would you want planets and solar systems of your own? Who is it, this "your own"?

Having a garden, just like having a forest, requires great planning and care, and even more prudence, consideration and measured intervention to make a whole nation flourish. Between exploitation and pampering of those who live in these spheres, there is a constant struggle because people lack the overview the bigger a space becomes and they cannot maintain it as central rulers.

Terraform a planet? No offence, it seems too gigantic to me and perhaps because what lives in your imagination cannot be captured in language that is used in everyday speech.

I can't make the mental leap from spaceships into what you described. Maybe in my dreams. I do not rule out that there might be a future of the nature you painted but then it has little relevance for me here and now.

I am sorry but I did not understand the whole paragraph about DNA. Could you put it into words which translate them differently?

the present is perhaps the most idyllic of times humanity has lived.

I tend to think in this direction. Overall, many many "ordinary" people could and still can enjoy what technology has brought.
A catastrophe mood took hold of the whole world, as it seems. Which is irritating, to say the least.

I am happy that you found my answer inspiring and thank you for the conversation so far.