The immediate alternative is to accept that life is not a meritocracy, and ceasing to act as if it were. In particular, it means not using fairness as a justification for policies that might be fair in a pure meritocracy, but not in the real world. "Fairness" sounds compelling, but when applied an unfair system, it can end up magnifying injustices.
It might be a good thing to push towards the "pure meritocracy" you mention, though the article does offer arguments that it's not possible. If it's not possible, then some things that push towards it potentially make the problem worse. One of the virtues of pure meritocracy is that it is simple, and if a system accepts an impure meritocracy while rejecting complications based on that virtue, then it will fail to achieve what you want a pure meritocracy to do and enshrine the evils of an impure one.
Even if it is possible, it won't happen immediately, and you will have to deal with that. Don't be surprised if people reject it when you say "Oh, I'm working towards a pure meritocracy, in a way that just happens to benefit me first, and I promise that as soon as I've got that I'll be sure to make it a pure meritocracy for you, too."
Essentially, I'm saying that if you want pure meritocracy as your alternative, you need to offer some evidence that there's a practical way to get there from here. And all the way there, not just a few things in that direction, unless you can show that they really do benefit everybody (or at least that most people would agree is a better state, not just some, and especially not when those "some" are those who are already better off).