I'm part of that sticky group of people that WILL NOT accept a larger block size. I doesn't matter what other people say; or the reasons that they give. Frankly, I would reject (with my full node, and SPV nodes) any non-bitcoin chain. Any block breaking the 1mb/10min avg limit will not be a bitcoin for me.
If they developers commit to scaling the network as far as the demand for transaction requires so that it can be the replacement for PayPal, and for Visa, and maybe even national currencies that we've all been promised, then I'll start up an extra full node to replace yours.That isn't the point either. The fact is that my nodes will continue to run quite fine; rejecting your blocks. I will be using bitcoin, and you will be using some alt-rule-chain that I don't consider to be bitcoin.
My coins will be spendable in both chains.
The thing is that if 10% (or even 1%) of the Bitcoin USERS do not accept the change, the change will not happen: because the economic consequences will be too-large.
We are not working in a democracy here. We are working with a "do what the you want, but I'm not going to change my code mkay."
For this change to be successful, the bar isn't 50%, or 90%, or 99%, but rather closer to 99.9%.