Everything has a Cause, so the cause is to blame.
In fact, lets blame the creator of the word cause, maybe that would solve everything.
How about, each person is an individual. As an individual, you are different to others, you have different needs, therefore you think differently than the next man. Difference is bad, although individuality is good, you go figure. If someone is 'different', they often get picked out, bullied. But each person is an individual, huh?
Blame individuality, if we were all drones things would be different, there would be no disputes, we would think the same, be the same.
Maybe they are not troubles? Maybe this is what makes us what we are, individuals, which is good, and dispute and disagreement is just what comes along with our freedom.
Now I lost myself, I'll just crawl back in my hole.