They’re mutts that identify with the rapist of the foremothers.
Look up mejorar la raza or blanqueamieto
there was definitely "violation" that occurred in the initial days of the invasion but the Spanish were numerically actually very tiny. it was mostly rival tribes that defeated the Aztecs as they were fed up with Aztecs oppressing them.
what happened was during the time Mexico was part of Spain, there was some lifting on the restriction of intermarriage (of course it happened from the beginning but at first there was some level of restriction) and so over the New Spain period a bunch of intermarriage took place.
I guess there are some mestizos out there identify specifically with the Spanish but that isn't really normal or mainstream.
In Mexico, there has been zapatismo (I'm not talking about EZLN but original zapatismo) and lots of indigenismo more generally. There was also the theory of the cosmic race, mestizo nationalism, emergence of mestizo identity.
All of this is particularly boosted after the post-revolutionary period that followed the 1910 period. there was some white supremacist stuff amongst elites during the porfiriato but this was not any sort of mainstream ideology after the revolution and I doubt was ever normal amongst the masses.
what you are talking about is something that can exist amongst a weird fringe but it isn't normal or mainstream.
people should not trust what they read in English about Latin America. the Western media is full of junk propaganda, from imperialist stuff to "woke" type stuff trying to paint Latin Americans as white supremacists for political reasons over not being on board with sjw ideology. the reality is way more complicated than these narratives. what is much more mainstream is identifying with being mestizo and then also there's a bunch that identify mainly with their indigenous lineage- and this has been very much promoted by the government since the 1910 revolution.