  Electrons can organize themselves into charge-ordered states to minimize the
effects of long-ranged Coulomb interactions. In the presence of a lattice,
commensurability constraints lead to the emergence of incompressible
Wigner-Mott (WM) insulators at various rational electron fillings, $\nu~=p/q$.
The mechanism for quantum fluctuation-mediated melting of the WM insulators
with increasing electron kinetic energy remains an outstanding problem. Here we
analyze numerically the bandwidth-tuned transition out of the WM insulator at
$\nu=1/5$ on infinite cylinders with varying circumference. For the two-leg
ladder, the transition from the WM insulator to the Luttinger liquid proceeds
via a distinct intermediate phase with gapless Cooper-pairs and gapped
electronic excitations. The resulting Luther-Emery liquid is the analog of a
strongly fluctuating superconductor. We place these results in the context of a
low-energy bosonization based theory for the transition. On the five-leg
cylinder, we provide numerical evidence for a direct continuous transition
between the WM insulator and a metallic phase across which the spin and
charge-gaps vanish simultaneously. We comment on the connections to ongoing
experiments in dual-gated bilayer moir\'e transition metal dichalcogenide
materials.
