If Spygate was an attempted coup by the Hussein regime to overthrow the legally constituted government of the USA, than that leveraged revolutionary act is treason. All three branches are pledged to defend the constitution - failure to do so by any falls to the next responsible level.
Trump has no (personal) choice in this matter if he is to uphold the laws and duties of his office. If not, then he should be removed, and the responsibilities assumed by those who will act to defend the country.
If that is true, then Trump is indeed guilty of high crimes.
No not at all. I wouldn't assume that Trump isn't doing the best that he can under the circumstances...or that he doesn't have some future action planned to fight the Deep State.
Not sure why you would.