A guy got accepted to go to Oxford, worked hard and got a 1st; then went to Stanton on the Fulbright program to get an MBA. And instead of people thinking that's admirable, people are pulling him down. I suspect not because he hasn't achieved anything worthwhile but because he is a Tory.
The missing piece here is his high school. He had an open door to Oxford (or Cambridge) due to his schooling. Had he gone to a local Southampton comp and worked hard, it's actually unlikely he'd have made it into Oxbridge. He'd have probably got into a red brick uni, which isn't bad, obviously.
But he's my age and the uni options available to those of us who worked really hard at school (arguably harder, as we didn't have the educational opportunities Winchester offered) were different than our peers in top public schools. And that continued even for those of us in red brick unis who wanted to get into banking. Including there being a difference between uni students at red brick unis who went to public school vs those who didn't. It made a BIG difference if you had high school alumni at the bank you were applying to. Unless, of course, it was just total coincidence!
Once in the bank you definitely had to prove yourself, you couldn't stay there because of your schooling. But up until then, you had open doors you needed to do "well enough" in order to get through. Without the alumni/contacts then you had to be actively impressive.
I have experience of all of this.
I think Sunak is intellectually impressive. But the idea he achieved what he did in a way that is comparable to anybody who didn't have his schooling background is absolutely disingenuous.
If top public schools didn't confer social advantage, they wouldn't exist.
And he knows this very well because he's got his own children in schools at least as socially advantageous as his was.