And indeed, the full survey results (linked on the bottom of https://harrisx.com/2019/02/new-poll-shows-overwhelming-supp...) show that once they were asked about subsidies, most respondents (and 74% of those with an opinion on the subject) thought they were too high.

(That's without being prompted with the specific $ amount of the subsidies, as far as I can see. If they had mentioned the $4 billion figure, the response might have been even more overwhelming.)