Not all geniuses are misunderstood and mistreated in their youth:

His favourites used to receive very liberal assistance from him; and
such was the submission and deference with which he was treated,
such the desire to obtain his regard, that three boys, of whom
Mr. Hector was sometimes one, used to come in morning as his
humble attendants, and carry him to school. One in the middle
stooped, while he sat upon his back, and one on each side
supported him; and thus he was borne triumphant.

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...his only amusement was in winter, when he took a pleasure in
being drawn upon the ice by a boy barefooted, who pulled him
along by a garter fixed round him; no very easy operation, as his
size was remarkably large.

[James Boswell(1740-1795):]Boswell´s Life of Johnson in two volumes * Volume one(Dent edition, 1967; originally The Life of Samuel Johnson,
1791), pages 19-21.

Of course, another question is would anyone else but an englishman
consider Samuel Johnson(1709-1784) a genius. His fame is, after all,
to do more with his personality than his works.