It really isn't. The UK government has strongly criticised the Israeli government's actions, and has applied sanctions to some far-right Israeli government ministers:
Performative and meaningless. The UK has been providing direct military support for the Gaza campaign for months now, long after it became obvious what the goals and methods were.
- https://www.gov.uk/government/news/joint-statement-from-the-... - https://www.gov.uk/government/news/uk-and-partners-unite-to-...