It is the people that gives it value. Value meaning in both abstract and concrete matter. The early people that invests their time to develop Bitcoin to become a reliable medium or instrument to be used to such payment in common transactions in common practices and to become a major part of the physical economy. Through the development of the BTC, new people that doesn't have a single knowledge in crypto especially Bitcoin starts to become curious of it. As they knew the benefits of it, they're interested on buying it and using its small reliability for payments in micro transactions, because of these purchases from different people, all those bought currency with its specific amount starts to contribute to the demand of the Bitcoin and since it is accessible for purchase globally, currencies vary with their own value causing its instability in price however that isn't the only factor that makes it unstable. Right now we're here keeping the value of Bitcoin from its crashes, I even doubt that it will lose its full value as many investors will arrive. We're gonna keep on developing and increasing as long as Bitcoin doesn't lose its significance and benefits to traders and investors.
The fact you're posting this tells me that you're a materialistic person. To have value, it's not necessary that it should be sold in the market or have a physical appearance. It should just fulfil the needs of the people.
Love, the most important thing in the world, does not exists as a material. You can't buy, sell, throw, play or as a matter of fact, take it inside you. It still exists. Doesn't it?
But Bitcoin isn't a basic need. A commodity will realize its own value when it is known to meet the needs of people. The "love" concept you're defining is more on political and I agree it has some correlation in Bitcoin since they're both abstract elements, both that cannot be seen unless Bitcoin was innovated into something solid which I highly doubt since it was made to be digital.