If it helps, when I was knee high to a grasshopper I can remember sticking some sellotape to my grandma's cat, just to see what would happen. I can confirm that cats do not like this. It went absolutely ******* loco, my poor Nan thought the cat was having a fit.
Pook you could try stripping naked and jumping on the cat then wrestle it in a paddling pool? One of you may be badly hurt but the cat will remember you.
Someone said orange peel, that'll probly work. Ours hates the smell of orange peel even from 6ft away, but thats fresh orange peel. You may have to eat a lot of oranges.
Get a dog or a rabbit. Or just let it happen, you realise all commercially grown food from the ground has poo put on it don't you? The cat's actually doing you a favour.
The simple option would be to raise the netting slightly. We have a small raised bed for herbs, I laid some trellis over it to stop the cats, although we had a momentary lapse when a new kitten arrived and could sit between the trellis. He soon grew out of it though…literally 🙂