There are people who live in Crimea as well who might be running in those videos, why are we assuming all of them are vacationers? The same can be said for those in the video in Tel Aviv, I'm sure it's a popular holiday resort.
Unlike the Ukraine military, funded to the kilt by western nations, Palestinians aren't able to afford laser guided missiles so their aim would be a bit off. And hardly any of their missiles even manage to do damage because Israel's defense is funded by the US, unlike in Crimea who actually saw a missile hit close by.
The point still remains, both videos show civilians running from dangerous situations when their country is the aggressor in a war, one gets sympathy, he'll you'd be called a racist for making fun of them, while the other group is vilified.