Israel invades the gaza strip.

Unfortunately, sources are way too damm conflicting on this. Jews say the Arabs ran away (or...stayed) and the Arabs say they got kicked out. Heck, probably both happened. The ones that did run away, though, expected to come back. They didn't. So for all intents and purposes, they got kicked out.

1) Conflicting sources or not, it is an undisputed fact that there are about 1.5 million Arab citizens in Israel now. Israel does not welcome immigration by non-Jews, therefore these are not recent arrivals. Unless you are prepared to argue these people are Jews in disguise, the inescapable conclusion is that these are the Arabs who didn't leave in 1948, and their descendants. It's quite obvious they weren't kicked out.

2) "The ones that did run away, though, expected to come back. They didn't. So for all intents and purposes, they got kicked out. "
What? Either they thought the Jews would kill them if they stayed, in which case they knew they wouldn't be back unless the Jews were driven off; or they thought the Jews would be nice and let them return, in which case why did they feel the need to run away in the first place?
It might be that in their own minds they had no choice but to run, but that doesn't make it so "for all intents and purposes".