I've never been to sensitivity training, but as a nurse a large part of my professional skillset is in my social and emotional treatment of others. Learning how to really listen to others and how to navigate the treacherous waters that cross-cultural (even within nominally similar cultures, such as between working class swedes and upper class swedes) meetings can be takes time, is pretty hard and requires a level of introspection that most people just don't care to achieve for day to day interactions.
I am all for everything that makes communication between people actually easier, such as learning how to approach sensitive topics like religion, sexual orientation or ethnicity without being provocative or confrontative. As a digression, social media is actually the opposite of this despite what it wants to label itself as and what was thought of it initially, because social media (especially Twitter) takes away the tools of nuance that good communication needs.
I never minded Sensitivity Training. Because for the majority of people, they assume their experiences are universal.
I remember back in the 90's, when I had a conversation with a female friend about walking back home from hanging out with all of us in Manhattan. She said how scary it is. I agreed with her and told her I hated it too.
She was confused. I'm well over 6 foot and broad, so she thought it would be a cake walk for me. I had to point out that I have to be worried that a.) if someone commits a crime, I'm going to possibly 'fit the description' b.) if people want to square off to prove manhood, I'm a good target since I'm alone and they are usually in a group, so they can pass along stories about how they knocked out this big guy or c.) no one is going to come to my aid and/or they'll believe I have it all under control.
In turn, she advised me if I saw someone like her late at night, most women would greatly appreciated if I crossed the street. They don't know me from Adam, so I'm just an inherent threat. If I'm no longer coming towards them, that would set some ease.
I never thought of myself as a threat because I don't want to hurt anyone. But I have the benefit of that knowledge. Others don't.
So I've been doing that since the 90's. Any more clues to make people at ease I'd welcome, as long as they are coming from honest fears.