It absolutely does matter.

You are making a blanket statement which both you and I know not to be true. I am going to assume that having disagreements or failed expectations is the source of this notion. If this is the case, perhaps you might wish to evaluate and adjust your expectations accordingly.

Obviously you have been hurt and the emotional fall-out is intense; but, to throw everyone into the same basket might be a bit much.

As I suggested above, evaluate the circumstances and determine if your feelings stem from intentional hurt, unintentional hurt, misunderstandings(s), or perhaps a difference of opinion and expectations.

If you conclude that these instances were truly intentional acts to hurt you then you need to cut off contact with the individuals.