LGBT movements have often adopted a kind of identity politics that sees gay, bisexual, and transgender people as a fixed class of people; a minority group or groups, and this is very common among LGBT communities. Those using this approach aspire to liberal political goals of freedom and equal opportunity, and aim to join the political mainstream on the same level as other groups in society. In arguing that sexual orientation and gender identity are innate and cannot be consciously changed, attempts to change gay, lesbian, and bisexual people into heterosexuals ("conversion therapy") are generally opposed by the LGBT community. Such attempts are often based in religious beliefs that perceive gay, lesbian, and bisexual activity as immoral.