Glenski, my opinion is that one would do well to consider all options.
I didn't say anyone should make that choice, merely that if one is trying to live and work in Japan, it is an option. Some may choose it, some may not, and most may not be given the option.
Personally, I feel that all disabled children deserve treatment, and I have no moral opposition to treating children here whose parents are connected to the U.S. government. Others may feel differently.