Like God?
Mikaelah is a modern elaboration of Michaela, which is the feminine form of the Hebrew name Michael. The name functions as a rhetorical question, implying that no one is equal to the Creator. This specific spelling adds a stylistic 'h' at the end, common in contemporary American naming trends.
Less common today
Mikaelah isn't in the latest US Top 1000. It last peaked at #7,078 in 1998.
US births per 5-year period, 1990βpresent (SSA data).