I know. The size of the blocks earlier were not big like now and still a limit was put to prevent spam and DOS attacks. In fact, number of transactions were much lesser than it is today. You think this has changed now? NO! We should not only consider about scaling[ but stability and decentralization too.
The current way of proposing by Gavin actually says about him asking miners and companies to adopt new fork which is essentially hurting decentralization.
You're contradicting yourself

, bitcoin mining as is right now is CENTRALIZED in China that is a fact that you can't ignore. Again
raising block size limit won't make bitcoin inaccessible in China or Africa , it would make only MINING harder due to connection restriction, which is nobody's fault. The network has grown over past several years, you can't keep using the same old tricks and praying that everything would be fine.
Also you can't just keep setting up shacks in remote locations with cheap power and poor internet connection just because you want to mine bitcoin and dump it to profit from it. As a matter of fact those mega-farms couldn't careless about mining being centralized in a single location . All they care is ROI and profit.
It amazes me people keep defending these mega-farms and at the same time they bring up decentralization , it's oxymoron . There's saying that goes as " you can't patch stupid " it fits perfectly here.
If Bitcoin does't scale up it would just collapse, then who cares about stability and decentralization when it's already collapsed because of not being able to scale up. Get your priority straight .