I am not aware of any countries that explicitly remove rights from people solely based on a mental health diagnosis such as autism. However, it's important to note that laws and policies regarding mental health and disability rights can vary significantly from country to country, and there may be instances where individuals with mental health conditions face discrimination or have limited access to certain rights and opportunities.
In some parts of the world, there have been historical cases of human rights abuses and violations against individuals with mental health conditions, including those with autism. These abuses might have included involuntary institutionalization, forced treatment, and denial of basic rights and freedoms.
However, in recent years, there has been a growing international awareness of the rights of individuals with disabilities, including mental health conditions, and a movement towards promoting inclusivity, dignity, and equality for all. The United Nations Convention on the Rights of Persons with Disabilities (CRPD) is an important international treaty that aims to protect the rights and dignity of people with disabilities, including those with mental health conditions and developmental disorders like autism.
Countries that have ratified the CRPD are expected to uphold and promote the rights of individuals with disabilities, including their right to autonomy, education, employment, healthcare, and participation in society.
That being said, while progress has been made, there are still challenges in ensuring full inclusion and protection of the rights of individuals with mental health conditions in various parts of the world. Stigma, discrimination, and misconceptions about mental health and autism persist in some societies, which can lead to unequal treatment and opportunities.
If you have specific concerns about the rights of individuals with autism or other mental health conditions in a particular country or region, it's essential to research the local laws and policies and consult with relevant human rights organizations for up-to-date information.