Man, you are twisting things all sideways... Evolution is not an input AT ALL to the age of the Earth. None, nada, other than your little fantasy.
I guess I’m out, you cannot debate with someone who makes up their own facts and simply out-and-out lies about what the opposing position really holds.
The sole reason for all “old Earth” approaches is the need for time for evolution.
What you are dealing with is a group of people that actually believe that creation took place less than 6,000 years ago over the course of six consecutive standard 24 hour earth days. Evolution is a persistent irritant to them because it undermines the credibility of their whole creation belief. Other are simply batsh*t crazy (You know who you are, Teddy)