A therapist can't change your world view on things. Any therapist that tries to isn't doing therapy they're just trying gain influence over you. It's about changing behaviours or thinking that is maladaptive and hurts the client throughout his/her life and they want to change but the behaviour has carried on since early childhood and they have no way of knowing how to change. So you go to therapy for insight and learn different coping strategies. It's nothing to do with your political beliefs or your sexuality unless it's something like paedophillia or someone wants to rape or something like that. It's more to do with how you interact with others.

You being a bisexual greenie activist isn't maladaptive to you. You seem happy with your lifestyle so you don't need therapy at least for that. I don't know about the rest of your life. Anyhow psychotherapy doesn't always work for eveyone anyway.