I think it varies. I've seen everything from people simply caring about the wellbeing of Palestinian civilians to rabid Hamas supporters and everything in between. I think it's easy to get stuck in an environment where you mostly see views that align with your own or are the complete opposite (with a corresponding dunk) and it's easy to get rage baited.
There’s a lot of ideological snap-to-grid.
Also we're a bunch of strangers making very short comments, it's hard to convey the entire nuance of one's opinion on a complex topic.
This is a fantastic analogy for ideological preferences.
It does not help that people feel passionately about these things on the basis on media reporting.
As I said in another comment, my own experience of living in two countries, and reading media from a few others, is that it inaccurate, sometimes wildly so. Sometimes dishonestly so - and dishonesty often comes from simple laziness.