The Ottoman Empire maintained its strong economic and political presence in the Middle East, North Africa, and parts of Eastern Europe during the Renaissance. What was the key to
maintaining this vast empire?
Few foreigners were allowed to reside within its borders.
The government kept a tight control of its citizens.
It had a centralized economy and political structure.
It had strong religious ties binding its people and leaders.

It had a centralized economy and political structure

Explanation:

There are many reasons as to why the empire was as successful as it was, but some of them include its very strong and organized military and its centralized political structure. These early, successful governments make the Ottoman Empire one of the most important in history.

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.