  We continue our study of renormalization group (RG) flows on Wilson loop
defects in ABJM theory, which we have initiated in arXiv:2211.16501. We
generalize that analysis by including non-supersymmetric fixed points and RG
trajectories. To this end, we first determine the ``ordinary",
non-supersymmetric Wilson loops, which turn out to be two and to include an
R-symmetry preserving coupling to the scalar fields of the theory, contrary to
their four-dimensional counterpart defined solely in terms of the gauge field
holonomy. We then deform these operators by turning on bosonic and/or fermionic
couplings, which trigger an elaborate, multi-dimensional network of possible RG
trajectories connecting a large spectrum of fixed points classified in terms of
the amount (possibly zero) of supersymmetry and R-symmetry preserved. The
$\beta$-functions are computed to leading order in the ABJM coupling but
exactly in the deformation parameters, using an auxiliary one-dimensional
theory on the defect and a dimensional regularization scheme. A striking result
is the different behavior of the two ordinary Wilson loops, of which one turns
out to be a UV unstable point while the other is IR stable. The same is true
for the two 1/2 BPS Wilson loops. We interpret our results from a defect CFT
(dCFT) point of view, computing the anomalous dimensions of the operators
associated to the deformations and establishing appropriate g-theorems. In
particular, the fermionic unstable fixed point is associated to a dCFT which is
not reflection positive.
