Well, here's a few examples of people saying that the New Deal either had no major effect on the Great Depression or even extended it:

https://www.wsj.com/articles/SB123353276749137485

https://fee.org/articles/fdrs-folly-how-roosevelt-and-his-ne...

https://www.nas.org/blogs/article/ask_a_scholar_did_the_new_...

(I basically googled "did the new deal extend the great depression" to find these)

Now, you could say that these are all "conservative" sources, and thus invalid. (Of course, you'd then have to throw out support for the New Deal from "progressive" sources, which might also be painful) But either way, it does show that "The New Deal didn't help" is a position held by people.