There is 'judgemental' and there is 'judgemental', granjura.
It's only pejorative when one makes a negative 'judgement' based on a stereotype or on very little or no information.
There's nothing at all wrong with weighing up what one knows about a person or situation and coming to a conclusion (judgement) based that knowledge. We'd never get anywhere if no-one made any decisions for fear of being labelled as 'judgemental' (which is a bit ridiculous, as has been discussed elsewhere, recently).
In my judgement, Trump has the potential to be far more dangerous to the future of the world than does Clinton. His stated views might be tempered by a) the political realities of office or b)they may be less extreme than appear to be; he's just using 'extreme' as a device to attract votes. But I wouldn't bank on it.