The human community has always had a feeling that my enemy should always be my friends enemy. By so doing we have progressively killed human social interaction.
Human social interaction is by no means closely related to politics. It's only in a political setting where we can share enemies because of similarities in perceptions within a party.
The problem that arises now is when people want to share their social enemies. Of course, we are humans at one point we might have enemies due to certain differences or clashes but they should not affect our social circle. With the experience of time I have come across so many sorts of enmity. It starts with only two people later expands to become a generational problem. For example if two men worked at the same company and they were always in competition. They ended up not seeing eye to eye because they were in a bid to beat each other at the finishing line. As if that wouldn't be enough enmity, they share their situation with their wives who take up the competition into their own hands. As obsessive as they are over their children, the wives put measures that their children behave like oil and water such that they never get together. Obviously the parents will pass away one day and leave the children in an unresolved feud which they will also pass on to the next generation. As a result enmity becomes transferable as if it is hereditary.
This is the worst part of it now; although you might succeed in transferring the enmity, those who inherit it suffer the wrath of a cause they know nothing of. In simple terms you would've created generational chaos whereby people argue for no reason.
Unity becomes a fallacy because people only understand that part A and part B will never mix. Be it that they later try to fix the problems, no one will know the root causes of the problem and it is difficult to come up with a solution you don't know it's cause. It might sound easy but exclusively it's a tough situation because there will be some extremists who take that situation and won't allow any room for comprise.
As difficult as it many sound it is highly advisable to deal with your own enemies and leave the world out of your issues. Some might opine it is a sign of loyalty standing by your friends all the time,so my friend's enemy is my enemy also. The question is, will the enemy remain yours alone or you will influence the next friend until it becomes a clash two giant groups who inherited two men's problems. Food for thought!
On a much better note, avoid making enemies and let unity be a reality.