I do see your point, but come on. What realistically effects her from Trump being US president in her day to day life?
If she was a black or latina woman living in the US or an immigrant living in the US, I would agree with you.
Reports he hadn't driven the car for months, so tyre pressures were low apparently. From the Sun though, so in reality it probably had just been serviced...
I don't really see the point in a protest against a foreign President, why would the US give a fuck what Brits think about Trump.
Americans seem to love him and he also has a lot of Black supporters in the US, so that also undermines the protest.