and yet people have suffered for centuries in your country (and mine) for the ability to maintain cultural pride, identity, freedom, and live without persecution. The construction of the black community in America is what enabled the minority to find motivation to live despite the abhorring conditions that they lived in relative to their white counterparts. The symbols, identities, and culture of the black community is sacred to them-- yet it continues to be appropriated from their white fellow Americans to this day. This persistent appropriation has the ability to collapse and dilute the very sacredness of their culture and community-- something that could easily be construed as covert cultural genocide. The very existence of 'black culture' immediately conjuring images of Hip Hop, violence, and inner-cities is representative of how white people have skewed the perceptions of what the multifaceted black community really is.
This long-standing history of cultural disrespect, cultural appropriation, and ignorance from White Americans is what makes so many people worldwide very discomforted by a white woman claiming that she is 'black'. While race is a social construct, and culture is a social construct, these constructs are incredibly significant to these cultural groups, and we both live in countries that enable cultural groups the right to maintaining their beliefs and identities free of persecution. She has a right to claim that she's black-- but she is vey deserving of the harsh backlash coming her way, as it's an incredibly sensitive issue when considering the backdrop of rampant cultural appropriation that happens in the black community. Many white people who idealize themselves with the black community are doing it in a skewed way, and undertake ideals often in conflict with the community at large-- therefore appropriating it.
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now find me an analogous circumstance in gender, with an issue like this.
I'll give you a hint-- there isn't. Thus, the comparisons between gender and race simply need to stop. There is no history of tragedies in America surrounding 'gender-cide', or the disallowance of women being able to practice their identities of women. Unfortunately, this is the case with certain cultural groups, and the appropriation of said groups is still ongoing.