you probably shouldn't shout in the middle of a meeting "Hi Dave, I hear you used to be a man" as that would be cruel and unnecessary.
Definitely. You also probably shouldn't try to get someone fired on the grounds of having said something that threw doubt on your personal politics, exclude women from services for having intersectional issues that get in the way of your personal politics, call believing in reality a hate crime or threaten to rape and murder women for expressing views that contradict yours either, as also - well, cruel and unnecessary.
I know where you're coming from but I'd be much more sympathetic to the 'kind' thing if it was a sincerely held value that was extended impartially to all, but it isn't. When it's used in this context it's nothing more than a demand of service from one group who are expected to provide, to a group who appear to be in this context as perceived to have no reciprocal responsibilities at all. It reminds me of trying to persuade a kid that if you treat others harshly and roughly but demand perfect treatment be provided to you in turn - you're onto a loser. Essentially because not everyone is your mum, or is someone your mum has employed to pander to you with the sky falling if they fail to entertain and please you, or show you any consequences for your actions, or dare to suggest you're anything but a perfect and wonderful angel.
There's a lot of things potentially going on here, not least issues with empathy, theory of mind and respecting others being very visible in many representations from people speaking for this political lobby, particularly in viewing female others and children, as equally human. And very cynical use of language and marketing. But one of the big parts of the movement is, intentionally or not, moving towards the setting up of a counter elite. Those who get to say they feel unsafe and those who get told to get over it. Those who get to name their identity and those who better accept what others call them and shut up or (death threat). It appears to seek to divide society into the givers and the takers, with the choice of which you are certainly not being yours. There's nothing 'kind' about that. There's nothing foresighted about it either, with limited understanding of how people work under such circumstances.