Decades of unjustifiable regional conflict used to manufacture consent for Israel to invade and indefinitely occupy portions of Syria, Jordan and Egypt?
Because that's the precedent that Israel has set for themselves. It's not a very popular plan outside of the Knesset, as this war has proven.
Nobody in those countries are seriously suggesting that there is going to be some war with Israel anytime soon, and relations are as good as they have ever been.
Every politician in these countries are preparing for a long-term campaign of Israeli interference, subterfuge and misinformation. Even the US is preparing for Israel's forever war.
Also, they do all sorts of things. The big one was contributing to the deaths many people in syria. I think thats more than enough for countries to call them a terrorist organization as they do now.
Its pretty horrible. You can look it up here: https://en.wikipedia.org/wiki/Hezbollah_involvement_in_the_S...
I'm not defending what Hezb did in Syria, but let's not forget that they emerged as a reaction to the zionist occupation. It would be nice to see some consistency, the zionist occupation has orders of magnitude worse crimes for almost 80 years now, yet they are endorsed by the west and funded to continue their atrocities.