Classifying that situation is an interesting little puzzle with many judgement calls. The discussion can't take place because the two parties are using fundamentally different languages - A is asserting that in order to respect A the dialogue must take place in A-language. B is asserting that in order to respect B the dialogue must take place in B-language.
Making the language of communication a negotiating aspect strikes me as an almost rookie error; both sides surely have something that they care more about than wobbles of air that make up sound. The first person to compromise on language will probably have a slight advantage in any following negotiation, because they started with a respectful concession and can reasonably ask for something in return. Eye on the prize, and all that.
The usual issue with identity politics is that there is a move to compel a specific language without acknowledging that for some people that represents a compromise. Typically the compelling is to be done on behalf of people who look like power-seekers and likely authoritarian. Not the sort of people who it is a good idea to give power to; they aren't negotiating types.
Making the language of communication a negotiating aspect strikes me as an almost rookie error; both sides surely have something that they care more about than wobbles of air that make up sound. The first person to compromise on language will probably have a slight advantage in any following negotiation, because they started with a respectful concession and can reasonably ask for something in return. Eye on the prize, and all that.
The usual issue with identity politics is that there is a move to compel a specific language without acknowledging that for some people that represents a compromise. Typically the compelling is to be done on behalf of people who look like power-seekers and likely authoritarian. Not the sort of people who it is a good idea to give power to; they aren't negotiating types.