You are seriously deluded if you think the HO needs to be more active in the research on her Bangladeshi nationality.
As for your question: reports of my dislike for anything British are grossly exaggerated. Also cutting ties with a terrorist supporter is not the same as making a mess of Brexit.
Your statements about her nationality border on lying. The Bangladeshi regulations are obvious in their wording. The nationality is not disputed in the standard procedure for the child of a citizen, but something that merely needs to be verified. She does not get citizenship by asking for it; filling out the forms leads to certification of the situation.