That's Nice. Anyone can get themselves elected if they bring in enough of their own genetics to vote for them
At the last census, 97% of the electorate in Richmond, Yorkshire, (Sunak's constituency since entering Parliament) was white British.
And another fun fact...there have been Hindu MPs in the Commons, though not continuously, since 1892.
And how does that negate the statement?
Sunak would not be in a national office if there was not a critical mass of his co-ethnics in the country as a whole.