You have my optimized resume. Why, in 2025, must I enter it all again?

Mostly I just keep moving on because I’m looking for a post-retirement job and my history goes back to the 1980s. However, I have a kind-of-niche skill and want to get onto the radar of those jobs. I’m putting so much time into this already. I have optimized my resume for ATS on several checkers. Why, HR offices, why???