Earlier quoted context omitted.
Funny enough, if tax burdens are shifted from labour and capital to land, land rents will actually increase. (But that's because people will have more net income left to bid up land rents.)
I believe that right now, people perceive that land rents are (relatively) subsidized. So people chase that subsidy.
However land rents are not taxed (very much) by themselves, so fall squarely to the owner of the land. So in that sense they are definitely worth chasing today.