How do historians regard the sage kings and the three cultural heroes today?

The correct answer is:

The three cultural heroes and the sage kings are considered mythical figures.

The three cultural heroes and the sage kings were two groups of mythological rulers or divinities in ancient northern China who in modern history have been designated dates in a period from circa 2852 BC to 2070 BC. Modern historians considered them culture heroes. Although the dates of these mythological characters may be fictitious, there are accounts of them preceding the Xia Dynasty.

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.