友人が職場でストレスを感じているようです。上司の間違いで仕事がきつくなったり、お客の前でスタッフを怒鳴ったりで、やめたいと思うことがあると言っています。「あなたの気持ちよくわかります」と相手に伝えたい。

Dear XXX,

Thank your for the email.
I understand you must be having a tough time at work. When the management of the shop is not efficient, the staff has to work so much harder. I especially don't like to work under a manager who criticizes his/her* staff in a loud and angry voice in front of others. Managers should know better and be more considerate.

I hope you will stay strong and take care of yourself.  If it makes you feel any better, please write or email me.  I will be happy to be your listener.

Sincerely,
[your name]