Clockwork gets more haters than others because he directly sold out another Jackpointer to the corps, and because he is an openly rabid bigot. All the Jackpointers have biases, and there are more than a few who are leery of Technomancers, but Clockwork is the only one that takes the hate and dials it up to 11. You see a group forming to counter him because unless you're also in the 'rabid hatemonger' club, having someone constantly spouting off about how one group or another is evil and abominations and should be killed is not something most people would want to deal with on a regular basis. You saw the same kind of thing back in the Shadowland days, especially with Dragonslayer chiming in every time dragons were mentioned. After a while, people just get sick of that drek. In fact, the more virulent Clockwork gets, the further it pushes everyone else away from him.
Look at a real world example. I give you the 'Birther' movement in the US, led by Man-of-Obvious-Combforward, AKA Donald Trump. The more people spout off about how they think Obama was born in Kenya, even after both forms of his official Hawaii birth certificate were published, the further they isolate themselves on the lunatic fringe. People who merely dislike Obama for one reason or another try to keep their distance, for the most part, because otherwise the Birthers make them ALL look like crazy nutjobs, whether they are or not. The same thing is happening on Jackpoint with Clockwork. It also doesn't help the situation any that Netcat has actually gone out of her way to try and prove that technomancers are just folk, and the corps really are doing horrible, horrible things to them. She's been playing it smart, not rising to Clockwork's bait most of the time, which just makes him look even worse. Sooner or later, though, things will come to a head, and because she's worked on getting allies, and Clockwork told everyone on Jackpoint that he would sell them all down the river in a heartbeat if there was pay in it, Netcat is likely going to come out on top.