You're right in that racism and sexism also exist alongside classism, nepotism, cronyism, religious and cultural bigotry, "place-ism," favoritism toward people

You're right in that racism and sexism also exist alongside classism, nepotism, cronyism, religious and cultural bigotry, "place-ism," favoritism toward people who attended certain schools, and so on. They're all problems. Racism and sexism are bad but the others should get more scrutiny as well. I know that classism and "place-ism" (favoritism or discrimination based on region of origin) are fairly big things in the US.