The title is strange, it should be "Trump lost the plot a long time ago". Reasons could be many - possibly given his age the early stages of vascular dementia.
You cannot argue with deranged, you are wasting lots of energy to no effect. I failed, she was an avid Daily Mail reader, to convert my mother to to logic, rationality & sanity. She swallowed all the tripe, hook, line & sinker.
Also the obsession with 'quality' tourists (translation - tourists with loads of money) & denigration of those who are not deemed to be 'quality' tourists. Maybe treat all as welcome except criminals who should have already been weeded out via the TDAC.