In itself it isn't Islamophobic, though tgat doesn't preclude someobe doing it because of Islamophobia. In this case Boris was indulging in something to get attention as the edgy candidate which he has achieved. It's nice to know you think he is finished but polling indicates otherwise. Further the Telegraph's treatment of their new columnist by treating his column's as front page news show they don't see him as finished.
No, I don't think it's Islamophobic, but Boris' comment has everything to do with his political ambitions as has been already noted. I personally agree with his sentiments on this ridiculous
tribal garb (as noted in the opening post here), but loathe his motives and his devious political machinations.
I note that the liberal imam Taj Hargey* - regularly seen on Sunday TV discussion programmes - has approved of the sentiments Boris expressed, saying that this tribal dress has nothing to do with the relevance of Islam to the modern world, and indeed detracts from it. And of course, wearing it and having politicians comment on it plays into the hands into the hands of extreme nationalists and racists.
For those who wear it - just for the record - the Koran has nothing to say on the matter, apart from vague references to modesty of dress, the
wives of the prophet speaking to the public from behind a curtain, and even vaguer references to 'lowering the hem of garments'. If God had wanted women in general to cover their faces, he should have had no trouble in saying so precisely. That's by the by.
*https://www.thetimes.co.uk/.../taj-hargey-interview-the-burka-is-a-fifth-column-we-will-...