To all those saying that if he were a white middle aged man, his embellishments and outright lies would be less of a news story, you're probably right.
However, unfortunately for any minority group of people pushing at glass ceilings - whether that's because you are a woman, person of colour, person with a disability or anything else - your success makes you a sort of 'trailblazer' and poster-boy/girl. You therefore - righty or wrongly - carry additional responsibility to represent your 'group' and prove the doubters (racists/agists/misogynists/ableists etc) wrong.
When you fuck up. You don't just fuck up on a personal level, you feed the people who wanted you to fail.
Institutions like Cambridge should KNOW that minority groups - or anyone 'shaking things up' - are going to attract additional scrutiny from the haters so they should be absolutely rigorous on steroids.
I feel sorry for the people of colour, people with learning disabilities, people with health issues, who saw this man and thought he was a beacon of hope. I also think every one of his students deserves a refund.