I can’t say for sure but it’s definitely not in “Democracy in America”. For what it’s worth the quote is listed as misattributed on goodreads and wikiquote..
Discussion
Apparently, per wikiquote that is, “the earliest known occurrence is as an unsourced attribution to Tytler in "This is the Hard Core of Freedom" by Elmer T. Peterson in The Daily Oklahoman (9 December 1951)”
That’s funny it’s also listed as him eon goodreads. Must be multiple versions of it with one as Alexis and another as unattributed.
Goodreads is actually where I copied it from, but that’s only because I was looking it up there. I had it saved from somewhere else where I didn’t save the link apparently. That’s why I went to goodreads. But it didn’t have a link to where it was from, only his name.