I agree of course with all your critiques of #bekind - and I really like the OPs wonderful responses.
But just sticking to the concept of 'being kind' - there is a saying that sometimes you have to be cruel to be kind, and I think it applies here, especially to children and young people who are falling under the influence of the trans juggernaut.
When a boy says he is really a girl, or vice versa, and wants to 'transition', the truly kind thing is not to say yes. The kind thing to do is the temporarily cruel thing of explaining that no matter what they believe, feel, think or do, they can never change the sex they were born into.
People who tell you that it's possible to 'transition' are not your friends, and are lying to you.
The actions you think will enable you to change sex will first of all not work, and second of all will damage your body and potentially your mind.
You will not be welcomed with open arms in your new sex, because most people will still see you as a man who is pretending to be a woman, or a woman pretending to be a man.
Hopefully they will treat you with decency and humanity, but they will not see you as you wish to be seen.
There is no magic at the end of the rainbow - it is impossible to change sex.
'You are special and loved as you are now, so let's try to understand why you don't love yourself as you are now' .
That is is #bekind.