You know he didn’t have to resign right? He literally only did it for honor.

Ah, i see the confusion now, you're talking about the "honour killings" kind of honour, the excessive toxic pride kind, like "leaving before you're kicked out to try and save face".

"I don't think i can win so i won't compete", isn't honour, it's pragmatism.

I'm not even throwing shade for it, it's a good call.

I was thinking of the idealised honour where you do the subjectively right thing, for the subjectively right reasons.

The uk political system is driven by honor.

Its driven by money/power/control, same as any modern political system.

They even pressured Boris Johnson to resign. Could you imagine a US president resigning before their term was done?

See the "leaving before you're kicked out" section from above.

The UK hasn’t had a single prime minister fill out their full term since 2015

I'm not sure how this is relevant but it is factual.