Should this man be sacked for this speech?

clipped from www.timesonline.co.uk Terrorist threat to UK - MI5 chief's full speech I speak not as a politician, nor as a pundit, but as someone who has been an intelligence professional for 32 years.

If a prospective Conservative politicians is ordered to stand down over remarks - which are muttered by about 8 out of 10 indigenous English- then this public servant should be taken to the stocks and pilloried.
The speech is relayed on the Times webpages and well worth reading.
Ironically, 5live BBC radio has today been inundated with attackers of this news, and I repeat what Victoria Darbyshire said to one contributor. "Why is it I have never spoken to a Muslim who had witnessed an Imam preaching hatred (sedition and treason if they say they are British)?