Exactly. Why in God's name would you fold this getting 2-1 after putting a 3rd of your stack in on a great flop. His range is probably wider than this and you still have odds to call.

Board: 8c 5d 3h
Dead:

equity win tie pots won pots tied
Hand 0: 37.515% 32.52% 05.00% 3219 495.00 { KdKh }
Hand 1: 62.485% 57.48% 05.00% 5691 495.00 { KK+, QdQh, QdQs, QhQs }