Some of that is going on. It is human nature to despise your former colonials that booted you out. The British lost India too but have no resentment against them. I think because India is too big to hate while the Jewish numbers were small in 1948 but succeeded. And are still small. There are 14 million Jews worldwide and Mormon numbers are about the same
Firstly, the Palestine 1944-48 ‘conflict’ has been almost totally forgotten in Britain. It isnt taught in schools and TV and the media almost never mentions it, even if Israel and the Palestine issue is in our daily media. Most Brits are completely unware that there was a conflict there. Ask 99% of Brits about the Irgun and Stern gangs and youd get a blank look. So the idea we have any residual dislike because of 1944-48 is a nonsense.
Secondly, we were hardly colonial masters. Britain only ‘ruled’ it from 1918 to 1948.