The best answer to the problem is the bottom answer
<span>Building the Panama Canal, 1903–1914. President Theodore Roosevelt oversaw the realization of a long-term United States goal—a trans-isthmian canal. Throughout the 1800s, American and British leaders and businessmen wanted to ship goods quickly and cheaply between the Atlantic and Pacific coasts.</span>
If the ottomans did not capture Constantinople the Europeans would've NOT try to find different trade routes which would lead to the Americas not being found, and which would also lead with some parts of Africa left alone.
Thanks for asking.
I don't understand what you are asking.