Can Grijalva's district be less than 50% Hispanic (specifically 46-48%)?
Depends on whether the Latino community candidate of choice reliably will win it.
I'll let you be the judge:
https://davesredistricting.org/join/a91a4295-7217-462c-b2b7-541ad50ed18dPretty much all of the white Democratic primary voters in Tucson live in the other district. Clinton won AZ-03 by "only" 13 points, but I think Grijalva or another Hispanic Democrat would easily win both the primary and the general -- this district didn't even vote for McCain in 2016.
This map would also shore up O'Halleran and Schweikert.