I grew up in it, immersed in it.

exactly, we all have, and still are. To the point where internalised and lateral bigotry are also a thing (again in service of the Imperialist White Supremacist Capitalist Heteronormative Ableist Theistic Patriarchy). There is so much to unlearn and it's ongoing work, the end point being to abolish those systems, but to also stay vigilant that they never return (by nurturing community, solidarity, and justice), so it never actually stops. Unfortunately many people are comfortable enough with the status quo that they aren't willing to take that kind of commitment on (especially one that involves a significant amount of self reflection and discomfort of realisation). Another feature, not a bug..