What fucking support did they have?

In terms of money maybe something like this:

https://www.reuters.com/world/germany-austria-suspend-bilateral-aid-palestinians-after-hamas-attack-2023-10-09/

Likely won’t be the last.

• In terms of „soft power“: they lost a lot of goodwill with politicians worldwide. No sane politician supports the killing of innocent civilians.
• Hamas also successfully silenced Israelis that oppose their own government. This probably what Hamas wants though.
• Since you are using a cornered animal metaphor: how the fuck did those foreign civilians corner THIS animal? And spare me your „but Israel“ excuses - those killed tourists didn’t have to do ANYTHING with this.