Even if all that is true, it is not a coup. Please read the definition. A coup involves a cabal that enlists military and government officials to overthrow the existing government. What Nancy Pelosi is doing is uncomfortably close to the actual definition of a coup. Trump told the crowd to "walk to the Capitol and protest peacefully and patriotically". He did not direct any trespass or any unlawful act.
Mob violence does not constitute a coup. Unless Trump directed or orchestrated the violence, he is not legally responsible for it, any more than the Democrats who urged on BLM/Antifa riots, arsons, and murders in a dozen cities this summer.