I'm going to disrespect a student who died supporting a terrorist group
That makes me feel rather uneasy. What is the reason you would do something like that?
I'm an Israel citizen and I shouldn't respect terrorists
I can understand your feelings on the issue and you aren't expected to support people who are part of a terror organization. You do not have to disrespect someone for it though. It is enough they lost their lives, disrespecting them now is not going to help matters.
What does you not respecting someone with a different opinion even have to do with anything?
You are not expected to support them but you do not need to show them disrespect.