Much of the discrimination experienced by gay men, lesbians and bisexuals is based on stereotypes, Many of the characteristics that are attributed to GLBT members of our community are true of heterosexuals as well.
Heterosexuals have a history of failure in straight relationships.
Your heterosexuality doesn't offend me as long as you don't try to force it on me. Heterosexuals are noted for assigning themselves and each other to confining sex-roles. The great majority of child molesters are male heterosexuals.