I suggest you read this article:

https://arxiv.org/pdf/2001.10952.pdf

As you can read there it will threaten our ability to detect dangerous objects. As well as other things.

We have optical fibers, common! Do you need to have Netflix in 8K on top of Kilimanjaro?

The issues I have with mars are:

1) the sheer scale of the project(s) (earth has limited ressources)

2) the lack of scientific framework

3) the arguments that it will be useful for survival

4) the very idea of people fleeing earth in time of major existential problems (climate & biodiversity)

So far it just looks to me like a holiday destination for the very rich. But glad if you can point me to some science that contradicts my view.