How can we help the sister who believes that homosexuality is natural due to media influence, and she does not know much about Islam?

It is necessary to preserve the blessing of guidance and to thank Allah for it, and to be keen on inviting your sister and influencing her, while observing the following: taking care to supplicate for her, being patient and not despairing, diversifying approaches, choosing the appropriate time for invitation, and using indirect methods such as gifting her influential Islamic materials, or seeking help from a religious friend of hers. It is also advised to provide your sister with fatwas regarding the ruling on relationships between genders and the ruling on perversion. The existence of these problems highlights the danger of residing in non-Muslim countries and urges a return to Muslim lands.