Re: 'they come, they go... '
"... they come they go, some thrive, then fade. None live forever..."
Really excellent points here. But we should not be complacent. I think there is something to be concerned about. Yes, the East India Company was huge - so were Standard Oil and Bell Telephones - and yes, all these declined. But they weren't truly multinational ("globalised") in the way that Google and Facebook et al are today. The US was able act to split Bell into baby Bells. But the same trick in today's circumstances is starting to look unlikely.
While the issues of undue political influence and the erosion of the corporate tax base are widely acknowledged, western powers are looking disturbingly impotent, constantly divided and distracted and beset by lobbying. Nothing is being done to counter the threat. Nothing really viable seems even to be in the pipeline. Very soon it might be to late. Perhaps it already is.