Losers are those who sell bitcoin
LOL. Why should they lose because of selling reasons and if there is no buying and selling process it is not a product.
winners are those who buy and keep bitcoin
That's an advantage that bitcoin has because when people buy and hold it, it will be a big profit when the price of bitcoin reaches its highest value.
If natural selection do favor the winners over the losers, then we will have more buyers than sellers, and this explains why bitcoin price will go up in the future
If everyone buys then the amount of bitcoin available will never be enough, the process of buying and selling is a sure thing because that's how it works. Price increases are not only determined by how much people buy, but there are other supporting factors. Don't forget that demand and supply are always related to each other and both have an important role in the bitcoin journey process.