CONTENT WARNING: I share family details that others could find triggering to read.
Your post resonates with me on a personal level. Freeze is my primary response, and I have been overweight since a small child, but I have a 0 ACEs score. I think my weight stems from a combination of things on my father's side--an obese great-grandmother (story unknown), my dad likely having grown up with an abusive father who also died when he was around 10 yo--and my mother's anxiety while pregnant with me because her child before me drowned at 3 yo within 3 weeks of finding her dad deceased from a stroke. She then miscarried her next pregnancy before having me. I wonder if her anxiety, possible numbness during my pregnancy could have influenced my freeze mode? I'm curious about whether fight, flight, freeze responses are also somehow inherited or learned behavior or just part of our personal wiring. I would definitely be curious to learn more.
Another trail that's less on the science side but that came to mind is the readings of Michael J. Meade, mythologist, storyteller, and more. I attended an event of his once where he told a story about what it means to activate our vital energy as an existential question, and what it means to live without that fire within us. This came to mind when from your mention of finding it easier to activate those who tend toward fight or flight. https://www.mosaicvoices.org/
I look forward to learning more about what you learn!