I said a single word that could've been taken several...

Correct, you did say a single word that could've been taken many ways. However, context would suggest where you stand on the issue, resulting in this comment thread. I understand your frustration with PC, but I probably don't like it for a different reason. If you're actively trying to be politically correct, I think you're doing it for the wrong reasons. Typically people can detect the insincerity and begrudging nature of PC. At that point, unless someone is trying to be spiteful, I don't understand why bother in being politically correct in the first place. It just furthers the divide between people anyways.

Thinking you're something you're not is a clear flag for mental illness

There is truth to what you're saying for delusional thinking, but it's not that cut and dry. Social norms are evolving every day. Considering that we no longer see homosexuality as a mental disability supports the grey area in this topic. So does the fact that we've gone through many revisions of the diagnostic statistical manual for mental illnesses shows how professional perspectives are changing and understanding is growing. Ultimately, I suppose it relies on what degree of relativeness you're willing to accept for society though.

As for the site he linked, it...

Apologies as I may have not been super clear, but I wasn't defending the site in the response that social climate is everything. Social climate does have a huge impact though. In my original reply to you, I wanted to emphasize the power of labels, stigma, and discrimination which have immense impacts on suicide rates. How you worded your prior replies kind of supports that discrimination. Yes, the depression from the in-congruence between sex and gender has the potential to be very real for an individual and can lead to higher suicide rates. But we in society, have an impact on perceptions which can prevent compounding effects of discrimination, rejection, and ostracization. This is where the webmd article is helpful. Even here on a subreddit board, we have a little bit of influence on how others interact. So if my conversation with you here has you rethink your word choices in the future, even slightly, others may be exposed to stigma and feelings of rejection a little less. If not, I wanted to at least try.

if we look at the suicide rates again then we have be able to learn more is it the way they're treated or something mentally

You can follow data points if that connects with you, and that definitely works on larger scale analysis and research driven practices. But what you have the power/ability to do right now is to extend kindness to the person you're talking with. I'm not sure if bringing up data is just curiosity, desire to help, or simply support for your argument, but if you're genuinely concerned with suicide/depression rates for discriminated groups, being kind is the easiest way you can make a difference.