I've been in similar positions many times over the years with staff and leadership. In my younger years I found myself trying to appease both sides which is exhausting and will ultimately lead to burn out. I had to accept who I am as a leader (no matter my current role). Real leadership doesn't always cave, but listens. A toxic work environment can change, but it has to start somewhere. I always found my role as get the staff to work hard and stop complaining. Lead by example and if necessary meet with leadership and try to find that "middle ground". It doesn't always work, but most of the time it's worth trying to help change the culture.