My anti-theistic perspective

[Edwardo Piet]

Therefore, our importance in accordance to the universe is quite unimportant.

To claim that the universe is any more important is of course a non-sequitur because if nothing is important then why consider the universe important?

Well, you, and many others value the universe and consider it important, and you do so subectively, of course.

Noting matters and there is no mattering without matterers for things to matter to. Sure nothing matters objectively even with matterers for things to matter to... but without such individuals for stuff to matter to nothing even matters subjectively.

Take away all forms of life from the universe and even subjective meaning doesn't exist anymore.

If anything is important, it's lifeforms. I don't mean just humans, I am not having a theistic attitude and considering humans special. I am talking about all conscious beings in the universe capable of caring about anything.

Again, you're not objectively wrong and we do just subjectively disagree, but subjectivity wouldn't even objectively exist (not a contradiction because the first sense is epistemic and the second sense is ontological), in the sense that there wouldn't even be subjective experience in the universe without the objective existence of individuals with subjective experiences.