What happens if you are 1/2 white and 1/2 Hispanic? Who is in charge determining race?
Racial identity for Hispanics seems to be a complex personal decision.
[1] https://www.eeoc.gov/employers/eeo1survey/2007instructions.c...
The end result of all this sort of game playing is not going to be pretty.
That strategy has been shown to work. And people are more angry about the beneficiary being called out about it, than they are that they stole a reserved spot in the first place.
There's a lot of Indian people with Portuguese surnames from around Goa, but I'd think that Spanish would be very uncommon, unless it's their first name.