"On my own experience I have seen my daughter nearly throw up at a showing of Avatar"
You certainly make a compelling case for 3D.

But seriously, enough of the negatives. We should look for solutions, and I believe there is one on the horizon. (I have no personal connection to what I'm about to recommend.)
See the paper "Digital Holographic Data Reconstruction with Data Compression" by Takanori Nomura (and others) as an example of what I'm about to recommend.
Obviously holography would be the ideal way to show 3D in the living room but there's a problem. The movie "Star Wars" forecast future television as holography, but even in Lucas's high-tech vision the resolution was iffy, a recognition of the enormous bandwidth a true holographic image requires. (Well, there was also the problem of interstellar distances if you want to quibble

.) The solution to this is to perform some heavy duty data compression. I believe this may be our ultimate solution to 3D image transmission. No glasses are required with holography and, as the paper claims, both high image quality and high compression ratios can be maintained with lower data rates.