Two things you can try
1 is drill out the holes to 1/4 inch and buy 1/4 inch dowels maybe a inch or inch and a half long.Glue(wood glue maybe epoxy?) them in the holes,then screw it in.
2 Get those screw in collar type screw fasteners that are used for drywall and screw or screw glue them in and the middle will accept a standard drywall screw. The original screws might twist in ? but drywall screws have the cone shape needed to be flush in hinge.
If under warranty I would bring it in for them to figure out.
Thought of a 3rd and 4th and 5th while writing
3 Move position of hinges ?
4 Try a thicker screw and drill out the hinge if its to thick to go through it.
Put a little wood glue in there so they wont loosen up
5 Pack the stripped hole with wood fill sold in little cans.let it harden overnight. sand flat then drill a hole smaller than the screw threads(this will make sure the screw goes in easy )That stuff gets very hard.
good luck let us now how it worked out.
I did notice a kitchen door lossen up after my 2nd 5,000 mile trip ,it tightened up snug and a I went around the camper and tightened up all other screws a bit and none stripped out on my 189fbs