Keith - it's a long time since I was a technically accurate writer of 'correct' English..
but even I can tell you are wrongly understanding Khan's isolated statement..

He is first and foremost a politician - it is a politician's statement in the idiomatic coded language of Politicians...

Khan is acutely aware that every word he utters in public will be over scrutinised without mercy.

He is carefully appearing to please everyone who might be listening..

He is addressing the public at a time of intense strategic media magnified discrediting of the Labour party.

This is the context for his statement.

Khan is deliberately stressing the word "IF" as he acknowledges the possibility that there may be some problem,
and then positively confirming he would not hesitate in "calling it out" .. IF and WHEN he might ever encounter it...

It's your misperception that he is appealing to what you think you are reading into it...


..and btw.. I am absolutely not in denial..

I am too cautiously objective and rigorously self disciplined a thinker to allow that to happen on any issue....

please remember and respect that !!!