In connection to empathy

If you can never change the past then why do they insist on people having mental inferiorities due to an accumulation of the past- even if they are handling it well. Granted the way of life society depends on is a trivial and lack luster for those who have large pasts but why are we condoning those who cannot handle seeing a bug yet alone not being able to handle ending up in a real situation involving human emotions. Why are we protecting the inferior instead of teaching them how to decipher and survive- are we trying to rid the world of impurity [meaning hate, violence, any outward/personal act that creates negativity really] instead of trying to unify the world.. one does not necessarily mean the other. Also as history has shown us the fight against what is perceived as impure hasnt really ended well.. it is still continuing today- we've taken a step toward unity in order to continue the fight against impurities but wouldnt a unified world be more efficient in said fight. Which through the steps we have taken to make that so has shown this- but what is in place to drive people apart is a greatly overpowering any thoughts of unity on a personal level [within each individual]- no matter how hard we try on a global level.. I just dont think there is a chance for unity as long as there is one higher then another or with the lack of proper teachings within schools. We have math, history, science- the important ones- but our language classes are severely lacking in the teaching of how to process words. They just have it set up "word-definition-use" they need a "reception" in there. In math we teach why an accumulation of numbers plus another accumulation of number equals what it does. Explaining the symbols along the way- why do we not have a class that does the same for interaction and deciphering. Empathy is not an emotion- it provokes emotions- it is learned- this is what would explain why you can have empathy in one area but not another.