Why do Jews not eat pork?
First, let's clarify that Jews do not dislike pigs or find them any lesser than any other of God's creatures. The Jews simply do not eat pork, because it is not kosher.
For meat to be kosher, the animal the meat comes from must be ruminant. Thus, the Jews do not eat pork, because pigs are non-ruminant.
Ruminant vs. non-ruminant defines how the stomach process food. Ruminant stomachs that can be found in cows, goats, and sheep process food by first digesting and softening plant-based food in one part of the stomach before sending it to the next part of the stomach. Whereas, non-ruminant stomachs like pigs and humans mix all kinds of food with saliva, and then it's broken down to liquids and solids before moving on in the stomach.
PS. The other criterion for an animal to be kosher is that it has split hooves. Pigs do in fact have split hooves, but since it is non-ruminant it is not kosher. Thus, that is the answer to "why do Jews not eat pork?"