Cannot uninstall a broken chromium snap

Here’s what I have:

xxx@minisquawk:/snap/chromium$ sudo snap list --all
Name               Version                     Rev    Tracking         Publisher     Notes
certbot            1.12.0                      952    latest/stable    certbot-eff✓  classic
chromium                                       1479   latest/stable    canonical✓    disabled,broken
chromium                                       1497   latest/stable    canonical✓    broken
core               16-2.49                     10859  latest/stable    canonical✓    core
core               16-                 10823  latest/stable    canonical✓    core,disabled
core18             20210128                    1988   latest/stable    canonical✓    base
core20             20201210                    904    latest/stable    canonical✓    base
gnome-3-28-1804    3.28.0-19-g98f9e67.98f9e67  145    latest/stable    canonical✓    -
gnome-3-34-1804    0+git.3556cb3               66     latest/stable/…  canonical✓    -
gtk-common-themes  0.1-50-gf7627e4             1514   latest/stable/…  canonical✓    -
snap-store         3.38.0-59-g494f078          518    latest/stable/…  canonical✓    -
snapd                        11036  latest/stable    canonical✓    snapd,disabled
snapd              2.49                        11107  latest/stable    canonical✓    snapd
xxx@minisquawk:~$ sudo snap remove chromium --purge
2021-03-19T17:10:34-04:00 ERROR cannot remove snap file "chromium", will retry in 3 mins: [disable snap-chromium-1479.mount] failed with exit status 1: Failed
to disable unit: Too many levels of symbolic links

This error is preventing me from doing anything else with snap, in particular, it is preventing me from updating the certbot snap.

What do I do to apply a big hammer to this thing and force it to uninstall these broken chromium snaps?