You and your wife’s experiences are clearly truly terrible and have no place in any society, decent or otherwise. Clearly they are sadly replicated by people the nation over. I do doubt that anyone on this thread would feel your experiences are anything other than deplorable, but obviously can’t be 100% sure.
I appreciate your experiences are far more cogent than most of us will ever encounter or at times even recognise and that must be a hard an unwarranted cross for you both to bear at times. Your wife’s role provides a vital service to all in your community, but as you will be acutely aware, should be totally irrelevant anyway, unfortunately some will just see the uniform and not the caring person behind it and away from work, some sadly will not even see that.
Racism in any form is sickening and should never be excused, but I do feel strongly it needs to be understood to try to change mindsets. I really do not know what the answer is. There clearly is no silver bullet and I doubt it will ever be eradicated, sadly. Legislation and policing of it is essential, but its only one thing, punishment is only a small part of the complexity. Punishment alone does not alter mindsets. We all have a duty to deal with it but like any form of discrimination or crime, many have strong opinions, but opinion and action are two very different things and not harmonised or practised that well in the real world away from social media.