Do you mean in the magical sense? That there’s a karmic force in the universe that causes bad things to happen to bad people.

Or do you mean it in the moral sense? That bad people deserve to have bad things happen to them and it’s good when it does.

There’s no natural justice. If we want it we have to make it.

IMO, simple fact that the majority of drunk drivers survive accidents that kill their victim instantly shows that no higher power is looking out to punish the wicked or protect the innocent.

I believe in a form of karma I like to compare to a public pool. If you keep pissing in the damn pool eventually you’re just swimming in piss and a lot of people eventually may get mad that they’re swimming in your piss

No. Netanyahu is still in power.

I’m not sure what you mean by “believing in” comeuppance. It doesn’t automatically happen when people do bad things, it’s not a real material thing. People can do harmful things that sometimes cause people to react and punish them, and I’d say that fits your definition of comeuppance, but it’s not some guaranteed or spiritual concept. So I can’t say I believe in comeuppance, even when it happens.

If you mean in a sense of justice, I don’t really advocate punitive justice, as gratifying as it is. What comeuppance does someone truly atrocious on a mass scale deserve? There’s a point where you’d need to artificially prolong someone’s life for thousands of years of torture just to scrape the surface of the suffering they’ve caused to humanity (let alone other creatures), some proper “I Have No Mouth” sci-fi stuff would be the necessary fate to qualify as Hitler’s comeuppance. And what does it accomplish? Not much. In the end, just give them a bullet as quickly as possible to prevent them hurting more people, we can leave ironic fates to the novelists.