Honestly I still discuss online but it's very rare. Mostly with teenagers since they are usually more open.
There is a problem of even where to confront with reason. Most of the time you hinder more than you help on mainstream social media, because more comments on a post will boost it on the algorithm and distribute the original poster's message further while they remain wilfully ignorant.
I did that for years. Many years. It burned me out and made me much more of a thin-skinned and intolerant person with those around me in real life.
I love places where they willingly come to redeem themselves (like r/IncelExit) but otherwise I just stray very, very far. It took a heavy toll on my mind.
It is a noble thing but one that shouldn't be required of most users.
Since I discovered I was transgender, I have been the happiest about my body and its presentation to the world ever since. So I'm pretty happy with what I was born.
Like, taking it at face value, "be happy with what you were born" is pretty good advice for everyone, cis or not, because swallowing in "waaa waaa I wasn't born rich and hot and tall like Jason Momoa" pity is pretty pointless at the end of the day.
@edit: Sincerely, accepting myself as transgender was the best thing that happened to me. I went from depressed nerd who sees his body solely as a puppet for his mind to someone who actively cherishes their body. Now I'm reading fitness books and fashion guides because I like my physical existence on earth and want to perfect and protect it. I have a goal on which kind of life I want to have and how I want to look instead of aimlessly asking myself why nothing ever works for me. Being trans is pretty fucking awesome for me.
I'm using Pop! OS and basically I only need to use the terminal when tinkering with Wine (because I'm stubborn and don't use Lutris), launching StableDiffusion or doing some wacky shit like trying to install a compatibility layer for android apps.