Rentvesting kills the economy because it doesn't evenly distribute wealth and that's your point OP, but have you considered that maybe entrepreneurship is a way better investment than investing in real estate, but it is difficult to find investors and when you do, the banks use taxes to take a fair share.

If governments would invest more in entrepreneurs growing, in research and development, in agriculture and food production, a lot of the issues revolving around of poor economy would be unimportant because the economy would have enough jobs, housing would be cheaper as well as labour and wealth would be distributed evenly from diverse sources.