oh god
Brennan argues that Rawls's theory - and by extension what has come to be known as "high liberalism" is illiberal. Given that Rawls himself is entangled in the definition of liberalism itself (A definition of liberalism must pick up Rawls or else it is a bad definition), one needs to find a neutral definition to arbiter. In a magnificent move, Jason Brennan (2004) does this and lets Benito Mussolini, Adolf Hitler, Marx, and G.A. Cohen define what liberalism is. Liberalism is what they do not defend, or they do criticise. By this criteria, Rawls is illiberal.
https://nintil.com/rise-and-fall-of-rawlsianism/