Closest I could find about what you are saying is this: https://www.cnn.com/2021/09/15/politics/cnn-poll-most-americans-democracy-under-attack/index.htmlI heard 6% on cnn
Is that what you are talking about?
It is up to the DOJ to prosecute Trump. I think that will happen. The state of Georgia and New York may also prosecute Trump. They are certainly investigating him.
I'm extremely skeptical to say the least. No former president has ever been convicted of any felony, and history has had some doozies. Tyler committed treason during the Civil War, Clinton lied under oath, Nixon did tons of illegal things. None of them faced any sort of indictment after they left office.