It's not just Trump, a lot of people voted for him despite all that was known about him and his plans. A lot of politicians still support him and help him drive his insane agenda. So yes, I think blaming the US as a whole is not unfair. And it's not like people outside can target Trump specifically anyway.
The damage is large inside the US, but all this crazy stuff hurts everyone around the globe economically. And even that pales compared to the threats that e.g. Canada received with the 51st state bullshit.