3.5:1 pot odds isn't enough to call a preflop all-in?

[AA Suited]

full ring no limit home game, .50/1 blinds. you have $10, and are bigblind with a pair of 3's.

utg is a short stack. he goes all in with $2 and accidently shows Aces. folds to you. pot is now $3.50. it'll cost you $1 to call. it's 3.5:1 pot odds, right?

1/4.5 = 22.22% chance of winning to break even.

As Ad 1384984 80.88 319884 18.68 7436 0.43 0.811
3c 3h 319884 18.68 1384984 80.88 7436 0.43 0.189

I only have a 18.68% chance of winning.

from a math perspective, even getting 3.5:1 odds, this is a fold, right?

[jgca]

Right.