I work on a project in a senior capacity. Each time we start a new piece of work, everyone submits estimates and then the work is tracked etc. However, a project manager questions mine and everyone else's workload every week, often saying that they must have spare capacity as he doesn't see people working late/early hours and frequently thinks everyone is lazy and wants them to work way beyond 37 hours pw. He often schedules meetings outside the 9-5 and always will add additional unagreed tasks or move deadline dates which is irritating and stressful for our whole team. He will moan about people on the project to me even though I am not responsible for them. He is also the sort of project manager who does anything to avoid accountability and responsibility to boot.
Although I am comfortable refusing extra tasks or asking him to prioritse for me and my team, I do find his questioning over workload draining and stressful. How can I address this? I really want to tell him to * off and although right now I am working extra, this is not sustainable nor fair as other company projects are not like this.