https://pbs.twimg.com/media/DxSZ58_XQAAoxM8.jpg:large
It does show a 75% in extreme poverty. That happens to be a straight down trend. Nobody even disputes this. It also shows a number of other things, such that "democracy" is actually stagnating. Bill Gates' actual remark on it is that people underestimate how much things have improved over the last two hundred years.
Hickel picks that one graph and turns it into the "Bill Gates says poverty is decreasing, he couldn't be more wrong" headline:
https://www.theguardian.com/commentisfree/2019/jan/29/bill-g...
That's dishonest. First of all, extreme poverty is decreasing. That's the actual claim and it is true. Secondly, poverty even by Hickel's standards is also decreasing. It may not have been decreasing consistently over every single past decade, but indeed is decreasing today and for the past decade. Hickel then goes on to say that "the number of people living in poverty" has increased. Indeed it has, as has the number of people living. The actual percentage of people living in poverty has gone down.
So what exactly is the problem with what Bill Gates actually said? He never claimed that poverty is solved, nor did he endorse "neoliberalism" as the solution.