I didn't stipulate how to disclose it, only that the right thing is to disclose it. I doubt you'd suggest the person should live in denial and/or not fight for his rights in some manner. Disclosing things doesn't necessarily include stupidly getting oneself killed by revealing them in a poor manner, i.e. inappropriately or unskillfully. After all, that would hardly do a good job of revealing the fact it's his right to have his own sexual preference, wouldn't you say? The important question is how to do things, not what to do. Given this, would you agree now?
Suppose you're a gay man living in Yemen. I do not accept any definition of "right" or morality that would compel me to disclose that information.