It would be very helpful to know the scenario, which is referred to. If it is only about a personal choice, I understand, that you would "refuse" using certain technologies, but then it would be more correct to write "prefer".
A situation where you could try to refuse a technology would be a project of your job, but then refusing could also be the wrong approach, people do not always have the choice and being a developer includes being flexible and motivated to learn.
To answer your first question, there is no language or framework, which I hate, but at the moment I kinda prefer learning JavaScript over other programming languages. Because of this answer, I cannot provide a reason to answer the second question.
You also ask it differently, asking why developers would hate certain languages. I would say there can be very different reasons for this and one surely is, that people just try to justify having difficulties with certain languages or frameworks. It is ok to dislike things, but people still should be patient and motivated, when they are facing something, which appears to be difficult to them. Then it can be, they suddenly like it, because, you know, they understand it better after putting some effort into it.
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It would be very helpful to know the scenario, which is referred to. If it is only about a personal choice, I understand, that you would "refuse" using certain technologies, but then it would be more correct to write "prefer".
A situation where you could try to refuse a technology would be a project of your job, but then refusing could also be the wrong approach, people do not always have the choice and being a developer includes being flexible and motivated to learn.
To answer your first question, there is no language or framework, which I hate, but at the moment I kinda prefer learning JavaScript over other programming languages. Because of this answer, I cannot provide a reason to answer the second question.
You also ask it differently, asking why developers would hate certain languages. I would say there can be very different reasons for this and one surely is, that people just try to justify having difficulties with certain languages or frameworks. It is ok to dislike things, but people still should be patient and motivated, when they are facing something, which appears to be difficult to them. Then it can be, they suddenly like it, because, you know, they understand it better after putting some effort into it.