come down to
Also, come right down to. Amount to or be reduced to, as in It all comes down to a matter of who was first in line, or When it comes right down to it, you have to admit he was mistaken. [Late 1800s] Also see boil down, def. 2.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.