No, I’ve been a poster here for a fair few years, under different usernames. I am grew up very working class, and am now middle class (in terms of affluence) my political views are typically right of centre, I grew up in a northern labour stronghold and will never hold a ‘must be left wing above all costs’ mentality, mainly because I’ve seen how damaging that can be !
And I’ve had some fantastic thoughtful discussions on here, and sometimes respectful disagreements, with posters from all different political stripes, and there are a few ‘lefties’ on here that i look out for because their posts are always insightful and thought provoking.
Mumsnet is a fantastic chat forum and one of the main appeals for me is that it’s mostly women, women can talk differently be more open and participate more when there are no men around (even online!)
As in real life there are some vociferous posters who are passionate about their ‘thing’ but that doesn’t mean there is only one view allowed- look at any political thread and you will find 3 more discussing the opposite view!
And yes there are also occasional asshats, as with any online discussion boards, you just have to ignore them.