You’r part right. Biblical YECs for the most part merely point to Dr. Humphreys’ white hole cosmology that utilizes Einstein’s GR to show that it is possible to have a young earth, and distant stars that are millions or billions of years old, and yet both owe their existence to the exact same creation event. It has to do with gravitational time dilation, a bounded Universe with a center of mass, and our galaxy being at or near said center of mass. And, as it turns out, the cosmic evos are starting to admit (even if they are loath to admit it!), that it appears that we are at the center of something, such as a cosmic void, or even (Darwin forbid!) the center of the Universe. Of course, Dr. Humphreys has been writing books and papers making this very point for close to two decades.
As for posting ID articles, I disagree with (and try to avoid), ID articles that accept or push an old Earth. However, sometimes I will post an ID article or paper, even if it contains old Earth assumptions, if the paper has something profound to say about the argument from design, or otherwise falsifies some important aspect of materialist evolution.
I don’t know what a cosmic evo is, but I picture Gram Parsons or the Nitty Gritty Dirt Band (before they went pop).
I’m not sure how you intend to discredit a biological theory with an entirely unrelated theory about the cosmos.