You put a lot of work into these posts, so I apologise that I don't have the patience or commitment to answer each point.
So, a general reply:
Surely you can "feel" that this season is the closest we have been for a very long time? We may have been on the brink of success in the Suarez season, but we were so reliant on him, whereas we now have greater potential throughout the team. What we have now would walk the league this season if it weren't for the presence of City. We have to remain focussed on the big prize and I believe it's now or never. Win it and we'll attract better players to continue to build, fail and we won't.
Winning the FA Cup would have no influence whatsoever on bringing players in, there may be a nostalgic attachment to it amongst native fans and players but on the world stage domestic cups mean nothing.
When I think of my life watching football, I don't go to a list of trophies won and stare at it - I remember great games, great players and great incidents. The most enjoyable time I've had as an LFC fan in recent years was watching the football in 13-14, and particularly Suarez, of course. That stands out in my memory even though we won nothing. You say 2nd means nothing, but it means many great memories to me - and they're more valuable than counting cups.
It's the games that matter to me, not the lifting of trophies.
I'm not saying they're irrelevant, but great football should eventually bring trophies anyway and I'm confident that if we continue in our current vein they will come - but I'm genuinely baffled by fans who think trophies are the raison d'etre of football.