The British were simply the ones who were left holding the bag after WWI.
It was called the British Mandate of Palestine. It was theirs to give to whoever they felt like. If any of the goofy UN proposals had been followed the region would be even worse off than it is today.
People think Israel = assuaging white guilt for the Holocaust. There was also a massive pogrom in Baghdad in I think 1942. There was also what the Soviets were doing to their Jews. It was becoming pretty clear Jews needed their own nation and own army to protect themselves.
Everyone who's "pro-Palestinian" is IMO hopelessly naive. Israel is the closest thing to a Western democracy in that part of the world. It's the only place in the region with a semi-normal society. Arabs love to pull this King-Baby bullshit. "We're the greatest in the world! We're just like you! We're just bullied! It's unfair!"
They're not just like you. They're not going to replace whatever Israel's doing with anything stable or sane. They're lying because they want something from you.
Israel is the only country in the region that can do anything right. That pager operation was smooth as fuck. Meanwhile even the other more developed countries in the region, like Lebanon, blew up their own biggest port in recent memory. They couldn't agree what to do with the explosives that were there. So they left it there to destroy, oh, maybe the most important part of their infrastructure.
You should be glad the UK did what it did that part of the world would be even less civilized than it is now if they hadn't. The Israelis are basically the only people in the region capable of properly administering a state at all.
Britain had thousands of Jews imprisoned in Cyprus. For attempting to illegally enter mandate palestine.
Post WWII was the biggest movement of humans around the world, period. Until now when we've all stupidly decided we don't want borders and hey thanks Hillary for killing the guy keeping all the migrants away from the crossing points in Libya.
A lot of people were moving around, most of them didn't have any real documents and no one knew the fuck what to do. Israel ended up being the perfect place for a bunch of paranoid Jews who weren't willing to trust any gov't in the aftermath of the Holocaust and various other pogroms around the world around the same time.