hetero/cisphobia and racism 4 white people dose not exist

I see people all over the internet who have been saying that hetero/cisphobia and racism 4 white people is a thing, and let me tell u, ITS NOT REAL /srs

since when has a cis/straight or white person been oppressed simply for the fact of being cis/straight or white? /gen

like plz enlighten me 2 why u think this crap is real because i am perplexed how y'all buy into this.