I'm confused?
What do you mean by land use issues?
Japan isn't using maglev for commercial high-speed service yet. Japanese high-speed trains have steel wheels that make contact with a steel track, just like regular trains. Their maglev trains are limited to experimental research and development [1], or low-speed urban transit [2] (which was built as a showcase for a World's Fair).
France's and Japan's high speed trains are based on the same technology as their lower speed counterparts, including American freight rail. How does a differing level of experience maglev technology cause a difference between different countries' quality of infrastructure, when that technology isn't being used?
[1] https://en.wikipedia.org/wiki/L0_Series
[2] https://en.wikipedia.org/wiki/Linimo