On the US/Mexico one, what is the point? The drug money are for drugs, no drugs = no drug money, also the poor drug traffickers having no choice because US has money?

The point is to reassign blame to "America" for the drug money instead of blaming the American hedonists who are violating American law to give the gangs their drug money. Because blaming Hunter Biden for funding cartel violence is very different to blaming Uncle Sam.