I object to stretching the use of this term for the same reason that I object to the debasement of WMD. If (as was recently argued) nukes = nerve gas = burning phosphorous = (why not?) napalm -- all of them "weapons of mass destruction", haven't we eroded, at least somewhat, the moral line that sets nuclear war off limits?
Likewise, if discrimination = genocide (as I've heard from time to time), isn't the concept, and horror, of genocide cheapened? Words and ideas I offer here may be used freely and without attribution.
The 'coercion' in the piano example is the process whereby the ownership of a piano is established as a norm for those in a particular socio-economic segment. Much in the same way, 'correct' ideas and opinions on the extraction and stewardship of natural resources, the environment and economic activity need to be established as a norm of 'all right thinking individuals', as the 'markets are best' mantra is right now.