The same could be said about people who get offended by words and demand they be removed in favour of another word, couldn't they learn to have a thicker skin? to ignore the words, because the cycle means whatever replaces the current offensive word eventually is used as an insult and...
I think you are intentionally ignoring or refusing to acknowledge the point people are making because you find the word offensive and are unwilling to listen.
The word retarded (Mentally Retarded) was generated by people who thought the previous words were offensive (Spastic, Lame etc) so they had a new word that would shield them from a perceived offence. IDD now is the same thing a new word with no connotations to it, that can be easily used to shield people from a perceived problem, without dealing with the core issues and insecurities surrounding it.
Disabled itself is slowly becoming a dirty word, as people do not like it when someone they think shouldn't use the word in a given context uses is.
Its quite easy to start IDD of as an insult " Do you have IDD or something?" " Look at this fool he's got IDD or something"
Whilst I understand where you are coming from, don't you think this endless cycle is something that is inevitable and at some point people have to accept the harsh reality of life that there will always be people who insult and use words with a negative connotation, and thus the only realistic solution would be to ignore them and deny them the power they obviously have over you?
Stupid and idiot equally had their own intended non-insulting use, but have been through the cycle to the point where they were insulting and now so far down on the scale are considered acceptable once again.
I've seen this throughout my 32 years of life with acceptable terms for race, when I was younger half-cast was acceptable to describe someone of mixed race, I'm not even sure if mixed race is now acceptable as I've seen some consider that insulting and prefer their exact ethnicity (which I'm not sure how a stranger should automatically know).
equally when I was younger calling someone black was considered insulting, and the preferred term was coloured people, now coloured is considered extremely offensive and black is not - hilariously in America I see 'people of colour' is an alternate acceptable term laughably so considering its a rearranging of the insult - Benedict Cumberbatch fell foul of this when trying to highlight the disparity in the film industry so his message was lost for a misstep on wording.
A friend/colleague of mine (who is black) have often had discussions on the topic and eh finds it irritating how people who are easily offended keep changing what is considered acceptable and what is offensive, he thinks people of colour is extremely offensive and no different to coloured people. We often laugh how its got to the point that people are afraid to discuss a persons skin colour as a description, when its an easily identifiable trait e.g people who try and go 'oh the tall man over there, not that one, the other one, in the suit, no no no' and completely make a conscious effort to avoid the obvious description of skin colour out of an irrational fear of insulting someone.
The topic came up recently in relation to a british quiz show called the chase, contestants compete against a randomly chosen expert, one of which is black and his nick name (chosen by him) is the Dark Destroyer, which some have suggested is racist, a colleague's son frequently complains that its racist and you can't call people black - his teacher said so.
Its a ridiculous cycle where the intention of words no longer have any weight and only a singular individuals interpretation matters, in our effort to be all inclusive and inoffensive, we have allowed individuals feeling to go unchecked and change society, when perhaps their view is wrong, but we dare not question it out of fear of offence.
This was already covered. No, I don't believe in defeatist attitudes. The perception around mentally disabled people can be changed even while hurtful words are stigmatized. It's all a part of the same effort, raising awareness in people who typically never even think about Down's syndrome, autism, cp, etc.
A lot of people use the R word without thinking about it. By getting them to think about it, it also gets them to hopefully think about their preconceptions about the disabled in general.