The Religious Right generally has two standard explanations for its opposition to hate crimes legislation. The first is that such legislation will outlaw criticism of homosexuality and end up getting pastors tossed into prison. The second is this odd claim that such legislation will somehow provide legal protection to people who engage in bestiality or pedophilia:
The main purpose of this “hate crime” legislation is to add the categories of “sexual orientation” and “gender identity,” “either actual or perceived,” as new classes of individuals receiving special protection by federal law. Sexual orientation includes heterosexuality, homosexuality, and bisexuality on an ever-expanding continuum. Will Congress also protect these sexual orientations-zoophiles, pedophiles or polygamists?
Considering that the purpose of such legislation is to "provide Federal assistance to States, local jurisdictions, and Indian tribes to prosecute hate crimes," how exactly would such legislation end up protecting pedophiles or zoophiles? Those things remain illegal.
Hate crimes legislation is aimed at, you know, prosecuting hate crimes, and targets anyone who "willfully causes bodily injury to any person or, through the use of fire, a firearm, or an explosive or incendiary device, attempts to cause bodily injury to any person, because of the actual or perceived religion, national origin, gender, sexual orientation, gender identity, or disability of any person."
http://rightwingwatch.org/content/robertson-will-hate-crimes-protect-someone-who-likes-have-sex-ducksPFAW raises a good point later on in the article. There are Christian Right groups dedicated to going after gay people and they use scare tactics all the time. These groups often use bestiality as an argument, so why then are there no Christian Rights dedicated to fighting bestiality?