Christ, you aren’t about to trot out that Jerry Coyne quote are you? Oh.
I’ll leave the astrophysics, as it isn’t my thing. Perhaps someone else would like to take it up. However, that’s evidence for an old universe, not an old earth. A YEC has to ignore much more than just starlight.
Whatever can you be talking about there?
And what does that mean? If you really want to defend old earth/young life you are going to have to confront the evidence more directly and in more detail. Check out @r_speir’s go at that. It may be sad, but it’s better than you’ve ever managed or attempted.