I don't disagree with much you say, except the opening and closing. I don't think it's going to come down to "voting" for Sanders... I think he'll have conceded by the New York primary in mid-April. But I'll support him in posts and verbally among friends, because he's closer to my own beliefs.
And as to what the country needs? Yes, we need a strong leader but not so strong as to one who doesn't listen. I like Hillary's evolution on various topics. It's an old argument: Which is better, a politician with a vision who will follow that vision regardless or a politician who actually moves with changing times even if it means seeming to contradict a former position? But for the future of the country, I personally feel that it's equally important the the Democratic Party stop trying to sell itself as Republican Lite and get back to its populist basis. Reclaim the reasonable middle and left-of-middle. When the oppositions biggest insult is "LOL! Libruls!", the answer should be "Yep, and damned proud of it!" Posters on these boards are not the general population of Dems running for office. Most of them, as you know, spend a lot of money showing just how Not Liberal they are. Obama showed that there's a motivated and dedicated liberal/progressive bloc out there. They need to move towards it. I think Sanders' candidacy helps and I want to see him in the race long enough to keep that discussion going. If it forces Billary to the left? Good! I'll take it because I think she's going to win, anyway. Reminding her (as it took ten year to remind Obama) of that constituency is important.