Now give me the list of ones that don't run on U235 or on a once through cycle (or a quantity of Pu greater than they produce which is the same thing with extra

Now give me the list of ones that don't run on U235 or on a once through cycle (or a quantity of Pu greater than they produce which is the same thing with extra steps). Just because you name something a unicorn doesn't make it shit rainbows.