Solution #1a… Cut the wire, strip it back 3/16" (after finding clean shiny wire), and use one of these heat shrink self-solder connectors.
50pcs Solder Seal Wire Connector, Sopoby Solder Seal Heat Shrink Butt Connectors Terminals Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow)
https://a.co/d/4qUIJbT
And I 100% agree about getting rid of those quick clip connectors. Same with wire nuts on 12VDC systems, especially outside the camper… It’s a matter of when, not if, they cause an issue.