I just want Dak to win something!
Quarterbacks don't win by themselves. Even Tom Brady had Gronkowski, Edelman, and others on offense. Had a powerhouse defense many years. Played in the NFL's weakest division for nearly all his career. Had the tuck rule invented for him to make up for his mistakes. Had footballs deflated so he had advantages in gripping the football.
Did you not notice Dak led the entire NFL in td passes this year? People called him an "interception machine" last year and promised more of the same this year, but guess what? Cut them nearly in half, more than in half if you look at number of ints vs. passing attempts.
No, he's not perfect, but NO quarterback should have to "carry his team", it's a TEAM sport. EVERY SB winning quarterback had an excellent team around him, most with a terrific defense as well. Dak has played more than well enough to win a SB, that's why he should get support from his fans. Does he need to play better in playoff games? Yessir, he should. He's had his share of mistakes.
IF Dallas wins the SB this year, or any year with Dak as the starter, he still won't have "won", there are many other players who will have had a part in it as well.