Definitely not. Positive representation of the gay community should celebrate their individuality and freedom. 'Gay forced permanent feminization stories' seem to suggest that there is a 'right' way for gay individuals to be, which is completely wrong. Everyone should be allowed to be themselves without being pushed into a box of someone else's making.
These stories are often more about the abuse of power rather than positive representation. If a story is about being forced into a feminization, it implies a lack of respect for the individual's own identity and autonomy. It can also reinforce harmful stereotypes rather than break them. For example, the idea that gay men should be more feminine can be a limiting and discriminatory view. Positive representation would focus on the diversity of gay experiences without forcing a particular gender - related concept on them.