You're asking a lot of conflated questions there.
The BBC if anything is pretty anti-government on balance: a cursory glance at the commentary and blog of their chief political correspondent Laura Kuenssberg will confirm that. Lauren Southern was stopped because (a) we can stop who we like as a sovereign nation and (b) she peddles the sort of far right rhetoric and hate speech that inspires mass murder like yesterday. I don't know the other two name you mention, but if they are from a similar stable then it will have been for a similar reason
The BBC if anything is pretty anti-government on balance: a cursory glance at the commentary and blog of their chief political correspondent Laura Kuenssberg will confirm that. Lauren Southern was stopped because (a) we can stop who we like as a sovereign nation and (b) she peddles the sort of far right rhetoric and hate speech that inspires mass murder like yesterday. I don't know the other two name you mention, but if they are from a similar stable then it will have been for a similar reason