If Trump and his team, are so stupid, so lame, so maladjusted,

Why can’t his opponents easily find and present the smoking-gun-beyond-a-reasonable-shadow-of-a-doubt-evidence that he is in a conspiracy with Russia?

From what I am led to believe by apologists for Trump's opposition, these opponents include, have support from, or are corroborated by:

-The smartest former president ever and his smartest former administration ever,
-The most righteous and honest political opponents ever (including some from within his own party),
-The most qualified former presidential candidate ever,
-The richest and most sophisticated intelligence community from the greatest country on the face of the earth ever,
-The greatest, most erudite legal scholars ever,
-The most independent and powerful judicial and law enforcement system ever,
-The most free, powerful, and independent press and media establishment ever,
-The most brilliant minds from within academia ever,
-The only legitimate purveyors of moral certitude and cultural legitimacy,
-2.8 million more people (some of whom are possibly legitimate voters),
-The backing of virtually the entire world, and
-The capital T truth

With all of that —all of that— against a merely narcissistic, simpleton and buffoon, who is also (in no particular order) a: Fascist, racist, misogynist, homophobe, Islamophobe, xenophobe, and bigot, why, oh why?!, is there not already a mountain of unimpeachable evidence, witnesses, and documentation that leaves absolutely no doubt as to the absolute guilt of one President Donald J.Trump in this matter of foul play with the Russians?

But, and of course, Trump must provide, in principio, lock-solid-and-conclusive proof of any claims he makes…right?