Capitalism v. communism is certainly a false dilemma. There are other alternatives such as Georgism as you noted. I would go further and advocate a Georgist economic democracy where all firms are structured as worker coops. Similar to the problem you identify with capitalism in that it fails to treat land and capital differently, the mainstream of Georgist thought fails to differentiate labor from capital in an important respect. Labor can’t factually be transferred unlike capital @196
The challenges you mention don’t really refute the main arguments for worker coops, inalienable rights theory, even if they were unsolvable problems that couldn’t be solved no matter what other changes were made. Economic democracy aims for workers to get the positive and negative fruits of their labor in property rights terms not value. This is based on the tenet that legal and de facto responsibility should match. Capitalist firms don’t satisfy this basic tenet. They are thus illegitimate @196