If enough move there they will ruin it........it will just take longer....Look no further than Colorado..
Assimilation is the key, that means Texas Cultural power is going to have to become more prominent & pervasive to match the influx.
With regard to the “Mexican population” we are going to have to fight the anyone for control of the “group” teach them Texas values and encroach them to see their new roots as Texan.
The biggest problem with the idea of race is that people try to enslave entire groups “races” a political faction.