Some would still come, but much less. I personally have chosen to avoid travel in USA during trump 1. I would again if things get crazy. I know that Australia, for instance, lists USA as risky for gun violence and demonstrations. It particularly calls out election and inauguration as to be avoided. It’s still noted as safe, but not as safe as Australia due to general violent crime.
https://www.smartraveller.gov.au/destinations/americas/united-states-america
Europeans still summered at the beach in Spain under Franco.
Some would still come, but much less. I personally have chosen to avoid travel in USA during trump 1. I would again if things get crazy. I know that Australia, for instance, lists USA as risky for gun violence and demonstrations. It particularly calls out election and inauguration as to be avoided. It’s still noted as safe, but not as safe as Australia due to general violent crime. https://www.smartraveller.gov.au/destinations/americas/united-states-america