The Earth is old. Get used to it.
Since we are talking about origins, and not science, everything that happened has “evidence” — the evidence is the forensic observable evidence from which we can speculate as to the causes which led to those observations.
Confusing origins with imperical science is a common error.
The “evidence” is that all of the evolution theories don’t hold up under scientific scrutiny.
Only a small fraction of we creationists are tied to “young earth”.