If you're losing information every generation you're also making new information every generation. The DNA isn't getting shorter its miscopying. That's proof that it changes over time. Darwin was wrong as to how but evolution is still occurring.

DNA is like kit kat bars or twizzlers. You can snap/unravel it differently each time and if you melted them back together it wouldn't be quite the way it was before. Thus its evolving. Darwin assumed that it was getting "better" but it is changing. That's enough to discredit young earther retards. I'm not a geneticist so I don't care about the fine print.