terrorists are people who attack civilians

Were the Viet Cong terrorists too? They attacked villages, took hostages, and used tunnels and guerilla warfare just the same. These are simply the most effective tactics for driving out an occupying force, and they wouldn’t be necessary if the colony wasn't there in the first place. Also, the vast majority of "israel" aren't civilians; they're IDF conscripts, settlers and colonizers.

Hamas does military action, which only endangers Palestinian civilians

Was the Warsaw Ghetto Uprising in Nazi Germany terrorism? Whatever the intention, the result was their own 13,000 civilians being killed, and very few German casualties.

Decolonization is violent. If you don't like it, don't colonize in the first place.

And certain actions from US

Not "certain actions"; the entirety of the US is a rogue terrorist state founded on the genocide of millions of indigenous people, slavery, and endless wars.