In terms of which groups might face overt discrimation in the U.S., I’m taking these numbers more seriously. The results generally lined up with my expectations of which categories of people Americans are both somewhat wary of and willing to say so to another person.
Being a socialist is an expression of left-wing political views, so it’s natural and unsurprising that a lot of Americans, particularly Republicans, would openly oppose a socialist candidate. Similarly, it’s not surprising that some Americans wouldn’t want a president who is in her 70s as president (maybe they suspect that person wouldn’t have the energy for the job) or who is younger than 40 (a lack of experience). This is also a view that is perhaps not particularly controversial to express — columns suggesting that Biden (76) and Sanders (77) are too old to be running for president are published regularly.
What views about candidates are more controversial? Disqualifying people based on gender, race, ethnicity or sexuality. Again, I’d expect some Americans with negative attitudes toward certain religious groups, racial groups and sexual orientations not to admit that to a pollster.