I'm sorry but I'm failing to understand the principle concept the OP is espousing. Let me see if this is approximately correct: because regular people can't mine bitcoins trust will be undermined and the whole network will die.

Why? How is this a scam? Some people have resources to mine and some don't (as is the natural order of everything). The P2P nature of the payment system itself, the rate at which coin is produced, the security of the network and your coins are still fine. You just can't profitably mine them yourself. So most of the coins will be mined in China...and? How does that affect me as a saver/spender of bitcoin? It doesn't as far as I can see. I can't print USD or mine gold or anything similar now and it doesn't affect my use of currency at all. I still receive and spend as I like.

If the argument is that 2-3 players will control the market? really? why? what about competition? if I see my neighbor making a fortune with his ASIC factory, won't I build one too? And as the market floods with ASIC devices, so what? the rate of production will remain constant as is algorithmically determined.

If however the OP is right that only a couple of makers will stranglehold bleeding edge technology and hoard it, then truly all the eggs are in one scary basket.