Was it a coup? Not at all. It was frustration being taken out, but there was no attempt to seize control of government or the military.
Was Trump responsible? At best it could be argued that he could have had less anger in his speeches in the days prior to the events. Leftists are trying to impeach him, painting a story of his supporters marching from his speech straight to the Capitol to break in.
The reality is that the Capitol was surrounded before Trump even began, and that the building breached 11 minutes after his speech ended. It’s a 40 minute walk. This can only mean that the people listening to Trump’s speech did not attack the capitol; it was two separate groups.
This impeachment is an even bigger pile of hot garbage than the first one.