One actually has an opinion on this..
....and it is that the guy is a 'stirrer' and not worth a light.
The Pi foundation has done a wonderful job of bringing an affordable educational tool to market, and all this numpty can do is moan.
Engineering is actually a gender-neutral arena, although I admit it is rather male dominated.
Whilst I respect his right to an opinion, I don't see why he would expect me to sign a petition endorsing it! After all, "Opinions are like ars****les, everyone has got one".
He should just stop meddling and let people form their own opinions!