I'm not sure it's that simple mate. The Venezuelan legislature determined that the election was flawed, and it is within their rights as per the constitution to declare the leader of the legislature temporary President until new elections are implemented. This had absolutely nothing to do with America or Europe. So why all the hate against America? Some other South American countries also endorsed what was in fact a legal action...
Surely it is not that simple (specially not as simple as you put it). It surely has a legal imbroglio there, and it is far from clear that there is a sound legal basis for Guaido to declare himself president. To begin with, the Venezuelan courts don't agree with that. You will instantly reply that the Venezuelan courts are politically biased, but everyone there is right now. The Venezuelan opposition is crying "rigged elections" for almost 20 years, and for years international observers declared them completely clean. Not this one, this time it may seem worst, I won't put my hand on the fire for these particular elections, but it is surely a case of the boy that cried wolf to begin with. Also, good part of the Venezuelan opposition has a habit of not participating in the elections, just to claim that it was rigged latter. It is really easy this way... you could check the turn out for that legislature election to begin with...
But their internal affairs is their problem. What I am complaining about is the US reaction. Tell me one other case where there is political crisis and an almost instant rush to recognize a different head of state in recent history? Not even in Syria. Mind that Guaido has almost zero power inside Venezuela. I am not even discussing his intentions, the reality on the ground obviously tells that if it was in any other place, no one would have ever listened. This is foreign relations 101, the moment you recognize a leader who does not have the real political power (even if he had legal basis) you are meddling in internal affairs. Every diplomat in the world knows that pretty well. For such a process to acquire legitimacy under international law much more time and much more bodies would have to endorse it. It simply does not work this way.
The other South American countries that endorsed it are, in most cases, either completely compromised with the US, or are run by new comers to politics which simply do not know the rules of the game. The Brazilian Chancellor is a good example. He is so blatantly ignorant that he is mocked on local media and by any citizen who knows how to read on a daily basis (and I mean it, you would not believe). Our current retarded government was (seriously) considering waging war against Venezuela at the transition of power period. Argentina is similar, to a smaller degree. Colombia today is basically a client state. And everyone acted within ours of the US position. There is zero sense of international law in this decision.
Look, I watched Bolton's interview. He mentioned Venezuelan oil in his third phrase. It is so blatant that is scary. There a lot of things wrong in Venezuela. But it is their business. The interventionism is obvious. I know all this sounds exactly like "far left" typical lines, but, hell, I am a liberal to begin with. It happens that I know a bit of how things developed there, add to this a bit of international law and there is no way you can see it as normal.
P.S. No hate towards America. I read American authors, I listen to American music, I watch American movies (among others, obvisouly). There might be hatred towards some American external policies.