Ow yeah, it certainly paints them in a very bad light, and I will not argue against others calling them NRx, or neo-nazis, I just like a little bit more proof myself because im a bit pedantic at times, but in practice it doesn't really matter if the 'we worry about great replacement r-strategists(*) racists' are NRx/nazis or not).
*: For those just tuning in. (Turn back! Stop reading! Go away, innocence once lost cannot be regained!) claiming non-white people are r-strategists while white people are K-strategists is a big far right foghorn. (wiki page on the theory) In their bs theory they ignore that this is about differences between species (of course they are also racists so yeah, this isn't hypocritical on their part, just a sign of racism), and r-strats are physically impossible for humans, as we don't have enough nipples + we take too long to mature etc.