And then this advice from SCBWI: "If you know someone is openly dismissive of your writing then they're probably not the person to read the first draft of your picture book." Let's forget about the grammar problem (someone/they're) and let's agree there's not much point in showing something to an enemy.
There is, though, much to be gained from showing a first draft to someone who's hard to please. Some writing groups are the equivalent of petting zoos. Try the lion's den. Go to someone discriminating or censorious and -- rather than ask about the whole book or story -- ask about the first page, the father-character, the scene where the muskrat has a heart attack or even a single paragraph.
If the dark side of writing is criticism and the light side is praise, step out of the light sometimes. There are interesting things in the dark.