Whenever I have a plastic threaded screw that won't tighten do to stripout of the hole I use this repair technique:

__use a section of round toothpick of the screw's shank diameter to fill in the hole at the bottom with the smaller part of the toothpick cone pointing out the top as a "tap drill" center punch/lead drill hole.

__wrap a drill bit of the screw's shank diameter "tap drill" in electrical tape as a drill stop.

__ insert "plug" and then pack the hole with epoxy and let it cure well.

__drill "tap hole" and give the plastic screw a "slight/shallow" head start with a standard tap as close to the plastic thread pitch as you can find.

__re-seat the screw with the correct screwdriver!