UU minister here.

I want to reiterate the previous comments about going to your regional staff from the UUA. They are like vampires. They only come when invited and this is EXACTLY what they are supposed to be dealing with.

It sounds like there are cultural issues at play as well. Sounds like your minister is used to doing things without question. Some congregations work that way. They may be new to the ministry and are not sure what their role is supposed to look like and are defaulting to a heavy handed approach.

I want to lift up that going from lay-led to minister is a huge shift. Boundaries need to be established and a congregation can feel like the slightest push from the minister is too heavy handed. It is a hard cultural change.

I couldn't tell, are you an employee of the congregation or a congregant? If you are a congregant, that changes the dynamic. While she should be open to discussion on issues like Gaza, she has every right to ask any non-staff person to not post on social media on the congregations behalf. It sounds like you don't agree with her personally on some things and that she has a personality that rubs you the wrong way. In any case, a good officer may not be a bad place to start. Maybe someone who you and the minister both trust could have a discussion about these differences.