What do you think it means in Buddhism when one say: “Compassion is the cornerstone of existence
Compassion is the ability to understand what someone else is feeling cornerstone is a foundation of something
Plz help me

Compassion in Buddhism means a deep recognition of the fact that all our lives and environment are deeply interconnected through the law of cause and effect, and the world we live in is a summation of all the causes that we create together as human beings.

Explanation:

So we should feel grateful to our enemies, for it is they who can best help us develop a tranquil mind!

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.