Declaring the clearest and most effective ways of solving it as "unjust" because they clash with your particular ideology perpetuates a vastly worse injustice—one that costs millions of lives, rather than merely feeling wrong.
I simply disagree. A tax on rent is the most effective and efficient method of redistribution, justified by well studied economic principles. It will create more wealth and save more lives than the alternative. No other tax is clearer or more effective, even in theory.