Because of the US bullying foreign policies, Americans tend to be the most disliked in other countries.
When I travel oversea and tell local people I am from South AMERICA, they recognize the word AMERICA and discriminate against me, in Japan its worse. Words like Canada, or even Guyana shows favourable responses.
I will suggest to you that among people who matter the response is most nuanced. In fact the heavy push back against Trump's lunacy and the fact that Americans are mobilized against him has in fact impressed many.
Americans have been quite vocal against Trump and people are listening to this. When McCain, from HIS OWN PARTY, is telling him to quite being an infant that is heard all over.
And don't make me laugh about Guyana being more favorably viewed. Few people even know where Guyana is, and those who do don't know what to make of it. I bet those kids at the robotics event had to explain that they come from one nation. No its not Nigeria teamed up with India.