People disagreeing doesn't mean they are bots automatically, posts defending the IDF get downvoted because there is more than ample evidence of the IDF committing some of the worst atrocities I've seen in my life, and they have been doing it for years.
There is a slightly more global perspective here than Reddit so it's less common that there will be echo chambers supporting Western propaganda. People falling for Israeli propaganda today haven't been paying attention, or they agree with Israels goal of eliminating Palestine. Anyone that has been looking into the situation for longer than a few years has seen every line, every spin, every rationalization Israel can make.
Is it just the interactions you've been having? :P I haven't seen anywhere near that hostility personally but I usually avoid convos where people seem too hostile. I've found a lot more support here than most other online spaces I've seen.