I don't think love is impossible to find. The problem is is that most have already found it in their own mind. But instead of finding the real thing inside themselves, they've found fool's gold; people make assumptions and judgements about what love really is, and then go out and try to apply that to the behavior of the masses until one fools themselves into thinking they've found someone who "matches" those pre-concieved notions of what love is. And even when they think they've found a match for themselves, they're off the mark because almost always it's a selfish and narcissistic definition people give to the word "love", and their partner is effectively reduced to their physical and emotional play thing. The proprietor becomes a puppeteer instead of lover, until their victim decides to cut the strings.
The reason most people cannot find love, is becuase their assumptions and judgements about what true love is are wrong; very few actually get it right on the dot in their whole lifetime. When someone contradicts what another has already assumed love is, that offended/confused person often makes the hasty and narrow minded conclusion that their partner must not love them - because their partner is not strictly adhering to what they know love is - instead of questioning what they think, learning from their mistakes and misconceptions and changing it to come closer to the truth.
It's not that you can't find love, it's always been there right in front of our face our entire life and will always continue to be. You're just blind to it because you yourself don't even know what you're looking for, and because you're so sure that you do, you can never know when you see love until that changes. How can you find what you don't even know to look for?
Utimately what "love" boils down to for most people is finding someone who belives in the same lies as they do, or finding one submissive enough to set aside their own misconceptions for anothers. It's a tragic formality that is hardly ever strayed from. Even by one who understands it completely.