I realise that "difficult" is a bit vague, so what I mean here is people who are demanding, domineering, strongly opinionated, lack self-awareness, self-serving, uncompromising, combabitive, say it as it is etc ......
To think that all those qualities stand you in better stead than being considerate, kind, self-aware, able to compromise, polite, reflective, tolerant etc.
I just can't see how unless I move to a Buddhist community the later serves me well!