Good writing is good writing, it doesn't matter who or what the characters are. The same goes for bad writing. I don't think we should avoid certain kinds of characters because some writers are awful.
Perhaps we misunderstand each other. I have never said that.
I have only said that I don't want to see a cliché like I see it on other shows, which - of course - is a sign of bad writing.
Especially as a gay man I don't want to see gay clichés on shows that I might like otherwise because I don't want to feel insulted.
Like f.e. with doctor who, when Moffatt brings in some gay characters or sexual jokes. They had a "transsexual horse" once and it was terribly stupid.
And there is no reason why I should believe that they will do a good job, even considering that Fuller is out and proud himself. So they will have to convince me that the gay character doesn't turn out to be some kind of Neelix.
edit: what I would like would be somehting like they did it with Uhura. Except for Abraham Lincoln nobody ever noticed that she was black.