The prejudice question is weird. I'd almost wonder if very very liberal people might say they're prejudiced because they're not being good enough allies?! And, if you are prejudiced, are you going to say so?
But the weirdness of it reminded me of this, where there was no neutral category to put yourself in. Possibly as a result, 1/3 said they couldn't choose from the labels offered:
https://www.equalityhumanrights.com/sites/default/files/attitudestootransgenderpeople.pdf
"How does the public feel about transgender people?
Respondents were asked to choose from a list of words to describe their feelings about transgender people. They could choose as many as they liked.
One-third (31%) said that they could not choose from the words on offer. Respondents who did choose were more likely to have positive than negative feelings about transgender people. Just under half of all respondents (45%) said that they felt ‘respect’, and 21% said that they felt ‘admiration’. Those who had negative feelings were most likely to say they felt ‘pity’ (16%). Relatively few said they felt ‘disgust’ (3%), ‘fear’ (2%) or ‘resentment’ (1%). Only two people in the sample said they felt ‘envy’."
Who could have come up with such categories?
"The findings of this report come from the 2019 BSA survey. Carried out by the National Centre for Social Research annually since 1983, the BSA survey is an authoritative source of data on the views of the British public."
You guessed it!