To a degree, I do. I can understand why it happens, and see opposition as just to some degree. And there is part of the blame on civilian settlers invading too, with ignorance or deliberately. But there is nuance in actions (damaging property vs people, etc), and planning for and handling consequences. The terror evidently caused much more terror and damage to their own side. It did not improve the situation at all.
If you're looking at the situation now, is it more important to support armed defense and opposition, or opposing Isreal in its activities? It's very clear to me.
Supporting Hezbollah doesn't give us anything in this situation. It is damaging in rallying support and in supporting Palestinians and their misery.
I'm pretty sure it's the interpretation most people will conclude to when they see someone wave that flag at a demonstration, though. There's a Palestine flag too. Raising that gives a very different image.
The German "Third Reich" had it's own flag, which is forbidden in Germany. I can see your point, though.
Those are country flags, though, not a country's militia flag. Germany has other Nazi symbols outlawed too.