This idea is simple and effective for solving a lot of problems.
It is basically a feedback control mechanism, which is similar to charging garbage bags in Taipei.
The more garbages you produce, the more money yóu pay.
Trump could consider to increase the tariff for China, and use the money to fund Taiwan or Japan with more weapons, freely.
The more China threaten his neighbors, the longer the bill he need pay.
As a consequence, they are good at making problems worse, or making simple things complicated. This can prevent the problems from being solved. Addionally, when there is no problem, they may create ones.
Trump is really a problem solver.
There are lots of politicians who deal with problems so as to acquire power and money. Since their goals are power and money, they need problems, instead of solving problems.