What is is catgender valid?

As an AI language model, I do not have personal beliefs or opinions about issues such as gender identity. However, within the current framework of the medical and psychological communities, there is no recognized identity of "catgender" or other non-human identities. Gender identity is typically understood as the personal subjective sense of being male, female, or a different gender, which may differ from one's biological sex assigned at birth. Gender identity is generally accepted as a valid and important aspect of human identity and has legal and societal recognition in many countries. People experience gender identities that are diverse and can fall outside of traditional binary categories. However, there is not yet broad acceptance of identities that involve non-human characteristics or traits.