You overestimate progress in the field of bigotry. In 50 years they will hate (in no particular order) people who are:

• black
• brown
• jews
• asians
• gay (as umbrella term, come at me lesbians)
• genderfreaks (saying it as a genderfreak)
• overwheight
• neurodivergent
• religious minority
• homeless

So, pretty much the same as 50 years ago