That doesn’t though specify who closed them. It does explain that the increased requirements placed on banks to monitor money laundering could be behind the increased numbers. If I ran a bank and the government expected me to do their work for them without reward then I might take the simple option and close anything doubtful rather than spending time looking.

Let’s see what comes out of the enquiry.

Is the enquiry not being led by an arch remainer, who has described brexiteersas xenophobic, racists who need to get in the modern world? I may be wrong but if not, any guesses how thee qualify will go?

My reading of the process is that two considerations are reviewed. Firstly, if an account holder is a PEP whose public status is such that their account requires a lot more costly oversight than the income it generates, then closing it is considered. Secondly, if the account holder is someone whose public persona is regarded as potentially capable of causing reputational damage to the bank within their target market, that too might cause them to consider withdrawing service. If both considerations are found then the likelihood obviously increases.

If a bank targeted Mail and Express readers and watchers of GB News they might well think those who promoted trans equality controversial to their market.

That’s a matter for any business to determine itself.

I expect many families do have just one account and for any in joint names only the PEP would lose access, thus preserving the ability to function. That’s just a presumption though. Even if the account was closed it would surely be a simple matter for the non PEP part of the family to transfer everything to a new account in their name with the notice given?

How could money be lost? They aren’t raiding the account. They are closing it.

Wrong again.
PEPS also include family members. Here's the definition ;

This definition is extended to include family members and known close associates of a PEP. These are commonly called RCAs – Relatives or Close Associates and the rules that apply to PEPs apply also to RCAs. Family members include spouses, partners, parent, sibling, child, partner, or spouse of the child

Old, Ungifted and White

I have no idea who it is or what their views on Brexit might be.

I do know that an enquiry into the closure of bank accounts by someone appointed by the FCA won’t be looking at Brexit but will have clear terms of reference and be expected to do their job objectively and professionally.

Casting aspersions on them before they have even started has echoes from the USA.

The lack of knowledge is not very surprising. No doubt you will get a mea culpa for the erroneous post

Responsibility Deficit Disorder is a medical condition. Symptoms include inability to be corrected when wrong, false sense of superiority, desire to share personal info no else cares about, general hubris. It's a medical issue rather than pure arrogance.