About a state? Remarkable stuff.
But do carry on saying what you like - truth, lies, whatever - about Israel. I doubt anyone would report you, however, because you’d be expressing an opinion about a state.
That said, of course, Israel being the sole Jewish homeland does mean that people would be entitled to regard posters’ attacks on it as more suspicious of motive than attacks on, say, France or Italy or England. Or Ireland. But there you go.