If in the unlikely event Texas goes blue within the next 3 presidential cycles, you will witness a far more vicious backlash against hispanic-Americans by the right.
Not necessarily. There is currently a significantly bigger gap between the Republican ceiling and floor for Hispanic voters and the Republican ceiling and floor for black voters. Responding to narrowly blue Texas as part of a Biden landslide by going all-in on anti-Hispanic sentiment would be much more likely to backfire than what they've been doing in Georgia and even that does not appear to be working out for them.