I try to stay informed about the situation but not daily and also not lokking at pictures or videos. Because having these things descibed in text or speech is still very impactful to me but it doesn't give me nightmares. That being said, try to take care of yourself. You're not being unfeeling or egotistical for not consuming information that makes you actively suicidal. Think of it more like this: you don't actually help anyone by reading the news. However, there are things you can do to help, like going to protests, donating to aid programs, educating others etc. But all of these take energy (especially for someone with autism), so conserving your energy is important. Maybe try avoiding news about gaza except for once a week for a few minutes. And instead every time you think about it research ways you could help those people. That way these feelings get channeled into something useful and don't become self-destructive.