The fact that you have men who say they are not in direct contact with Jehovah. They say they are not inspired prophets. Yet they expect us to allow them to make almost all of our decisions for us. They make life and death decisions for millions of people when they are coming up with these ideas themselves. They take a majority vote over those decisions by the way.
Then all the lack of love in that they practice survival of the strong. Survival of the fittest: unlike Jesus who was very caring toward the weak, infirm and fragile whether they were christians, jews or not.
Them disfellowshipping mentally ill people.
The things that went beyond the Bible like oral sex and masterbation never being mentioned but being under ban. Just two examples. Birthdays is another one. Oh yeah and smoking. Nowhere in the Bible does it say you cannot do those things. That is the start of a very long list of rules they made up that are not stated in scripture.
Jesus saying his yoke is kindly and light. Them demanding that you make five meetings a week. Study for them. Pressuring you to make field service as much as possible. They want you to do this no matter how extenuating your circumstances are. Whether you are sick or your family is sick or depressed or have horrible things you are going through, they demand you not falter. They don't give you any excuses. They withdraw any support if you can't measure up. If you falter they say it's your fault. You did something wrong and are spirtually weak or sick.
The fact that you cannot question them once you are baptized. That they spend so much time looking for a student, years even but will drop them in a second if they get baptized and then cool off for any reason.
Big one: conditional friendship and love.
Flyin'