I would hazard a guess that the vast majority of you have never met a trans person in your life and the actually have on impact at all on your day to day life.
That's a very shallow perspective.
I believe every woman (original female meaning) in the world is affected if society decides the thing that makes us women is not the fact of our bodies but some ineffable womanliness of mind that can exist in either sex.
Firstly, because it's incredibly sexist. It takes us right back to "girls naturally prefer to support than win. Women naturally prefer low paid caring jobs and raising children to high paid leadership. The female mind is emotional not logical. Women aren't sexually agressive, they need to be dominated" and all the other self-serving myths men created around us to justify treating us like resources not people.
Secondly, because in changing the definition of woman to be something men can achieve, it pushes many women who don't recognise themselves in this new idea of the woman-in-the-mind out of womanhood, leaving them without the language to describe themselves or make sense of their sexed experiences, and without the right to access the woman-only supports that were supposed to be there for people like them (female) to mitigate the challenges that come with being female.
Thirdly, because it breaks the connection between women-only resources and the male behaviour and male privilege that mean we need them, meaning over time it becomes harder and harder to justify why woman-only resources should exist at all.
Not to mention that some of us are also concerned about the impact of gender ideology on trans people. It's not all rainbows and glitter, it's ultimately selling people a fantasy they can never achieve, putting them at odds with reality and with the world's perception of them. By encouraging them to stake their mental health on everyone around them agreeing with their personal definitions of man, woman etc, they are put into a precarious, vulnerable and beseiged state of mind where they are constantly having to police themselves and others, never relaxed.
And that's the lucky ones, without even getting into the medical consequences and the risk of being sucked into abusive subcultures or relationships.
But yeah, no impact on my day to day life so why should I care, right?