Unfortunately, I know exactly what you're saying. I quit my last band earlier in the year for a number of different reasons, most of them stemming from the singist.
I put a few ad's out there, saying what I was after (original material, etc.), but was still approached by covers only bands. Also approached by a couple of people wanting to do originals who sent links to their material, but when I listened to it, calling it "woeful, formulaic rubbish" would be generous.
Anyway, @NancyJohnson, I don't think it's too much to ask.
You can only polish a 💩 so much, until you realise it's still a 💩.