I hear you and share your fears. Kind of.
It's also the 50th Anniversary of Watergate! And, I'm old enough to remember it quite well. The Watergate break-in occurred on 17 June 1972, and Nixon resigned on 9 August 1974. (I was 23 to 25 years old during that time.) It only took two years and two months. Looking back, that seems quick. But at the time it seemed like it took forever.
- Most of that time, Nixon was in heavy stonewall mode, denying everything, while his administration was slowly crumbling around him. Many of his closest White House advisors were either fired or resigned, and were eventually under indictment. But Nixon insisted he was innocent, saying famously "I Am Not a Crook!".
- Some time around the spring of 1974, things began to shift. Sometime in the spring cracks & fissures appeared and remained. Transcripts (heavily redacted) of many (but not all) of his White House tapes were released. None of it was directly incriminating, but people were shocked at how vicious he was, and how foul his language was. This especially true for the solid Nixon supporters.
- In April 74, his tax returns were made public, revealing how he had paid ZERO taxes for the past two years. That also contributed to his loss of public opinion support.
- In late May 74, the House Judiciary Committee passed the Articles of Impeachment.
- A week or two later, the US Supreme Court ruled unanimously (8-0) that Nixon could not keep his White House tapes secret anymore. He was ordered to release them immediately. The court's opinion was written by the Chief Justice Warren Burger, a Nixon appointee. One of the tapes (the so-called smoking gun tape) clearly showed hard evidence that Nixon personally ordered the cover-up of the break-in, and he authorized the payment of hush money to buy silence from the Watergate burglars. That hush money was part of an illegal slush fund that illegally obtained from private contributors.
- Within days, or no more than a week, Nixon was gone.
It's obvious to all readers that Watergate is my favorite political scandal. But here's my point. During most of that 26 months, the public thought Nixon was innocent, or that he was guilty but would manage to get away with it. Only in the last 2 months did it become clear to everyone that he was dead meat.
Despite what we've all seen so far with Trump and his attempted coup, I'm not convinced that he will get away with it. Public opinion is slow to change, sometimes painfully slow. But when it finally does change, it happens fast.