a. The "imposition" is a new reality in world economy and implications on air travel.
b. Workforce individuals with marketable skills offer their competency to potential employers. If an individual doesn't like remuneration or workplace conditions, he should migrate elsewhere without destroying the company and its clients' life.
c. There are enough trained cabin crew without jobs who would gladly join BA.
d. Bringing a quality company down will not help anyone.
e. The damage to BA (and Lufthansa) by striking could and should be returned, through legal proceedings if necessary, to the airlines and its shareholders.
f. Finally, don't play with fire, or you might get burned.