I am serious and challenge you to prove (this means i want to see some proof not speculation) me wrong. Bitcoin price is at an ATH, so are unconfirmed Transactions and the fees. Everybody is talking about scaling up while the number suggest we should scale down. Nobody uses Bitcoin as a currency to buy stuff, everybody is holding and in for a profit, so the fees do not matter. Let us maximize the profit by setting the blocksize to 0.5 MB.
The current block size is bigger than 0.5 MB, but still it is not enough to handle many transactions, resulting the delay of many transactions in the blockchain that are not yet confirmed. So, reducing it to 0.5 MB would just make the situation worst than the situation we are having right now. You may be right that nobody uses bitcoin to buy stuffs most of the time but we are still using to pay services that we are having here in the virtual world.
So, it is really not good idea to reduce the blockchain in to a smaller size than its size right now, I think you are being so selfish about making profits on bitcoin, that is why you came up to this point where it doesn't make any sense. You are not the only one who is using the bitcoin, so it is not possible to happen what you are thinking.