ChatGPT doesn't cause a significant number of suicides. Why do I think that? It's not visible in the statistics. There are effective ways to prevent suicide, let's continue to work on those instead of giving in to moral panic.
My personal belief is that at some point in the future you might get a good estimate of likelihood that a person commits suicide with blood test or a brain scan.
Suicides spike around Christmas, that's well known, does Christmas cause suicides? I think you see where I'm going with this.
You're replying to a teetotaler who had an alcoholic parent growing up, so I'm sure you can see where I'm going to go with that ;)
Do you believe a book should be suppressed and the author made liable, if a few of its readers commit suicide because of what they've read? (And, before you ask, that's not a theoretical question. Books are well known to cause suicides, the first documented case being a 1774 novel by Goethe.)