No rational person would even attempt to deny...that China...has routinely attempted to manipulate American elections in their favor

Give a few examples.

It's funny how you went completely silent as Trump started to threaten Iran... again. A while back, you were assuring me "MISSION ACCOMPLISHED, BIG WIN!!!!!!" Turns out, you can be wrong about many countries simultaneously.

The extent to which these efforts are even successful is irrelevant: the attempt itself makes those efforts a threat to American national security.

It's irrelevant. Someone even thinking the thought is a THREAT to national security! Believe me, folks.

However, just as with your flippant dismissal of the overwhelming evidence that Venezuela was being used as a drug trafficking route

FYI: repeatedly claiming something with no evidence doesn't make the evidence overwhelming.

your disproportionate, totally irrational anger at Trump's decision to decapitate that regime can only be justified if you continue to insist on believing that he did so without any provocation whatsoever.

It's as if you've never opened a history book in your life. You do know that the US has actually interfered in the elections of many other countries, right?

So there's no point in continuing to discuss this with you.

Someone realized that he'd be asked to back up some of his preposterous claims, so decided to pre-emptively run away with his tail between his legs. Run away, little fella. It's what you do best.