Ahh these kind of straw man arguments do amuse me. I'm not for one second suggesting here that Pickford hasn't had a shambles of a season, but let's look at what you've got down here:
Wolves away - yes he should have saved that free kick, but it was moved 5 yards further forward than it should have been taken from and we were down to 10 men from that point onwards. We even took the lead again after that so to say he cos us 2 points (not 3 as you say) is harsh.
West Ham at home - I believe it was the second goal that was his fault due to a poor kick out, still there was nothing he could do about the finish and we lost that game 3-1, so subtract that goal and we still lose, so I'm scratching my head here how he cost us 3 points?
Leicster at home - harsh to blame him considering Keane and Walcott were at fault for letting Vardy through 1 v 1. If we are going to blame Pickford for points lost for not saving 1 v 1s, should we not also thank him for crucial saves such as a Chelsea away and Liverpool at home to name a couple. Not to mention a pentaly he saved against Crystal Palace at home with the scores at 0-0...
Liverpool and Newcastle away - yes, no doubt those points were dropped because of him.
My main gripe with your argument though is that you seem to have a very strange "you can't judge Silva until he gets a proper goalie and striker" type argument, were virtually all the faults of our season are brushed under a Jordan Pickford and Dominic Calvert-Lewin shaped rug. Neither of those players are responsible for our dreadful set piece record for example, one of achilles heels we've shown this season.
We are 11th on 40 measly points because we haven't been good enough mate, playing and coaching staff both.