Anecdotal of course, but I've spoken to many people currently living in poverty who are firmly against measures like this because they worry people will freeload.
I'm sure it comes down to the news cycle, the American dream (I'm reminded of Wright's/Steinbeck's "temporarily embarrassed millionaires"), personal politics and upbringing, but at the end of the day it feels like crabs in a bucket.
I try pointing to single mothers working two jobs, or the disenfranchised, or the honest hardworking people who are just unlucky, or even a mirror, but it never seems to stick. I'd love suggestions on a better argument.