There is nothing light-hearted about this book; it is frighteningly serious. If you want a giggle about the US Pres, well, there's Unhinged, Everything Trump Touches Dies, and several other more or less serious entries. This book will scare you shitless if you live anywhere in the so-called Western world. Unger paints Russia as basically a country controlled by organized crime lords (Oligarchs, if you like) with Putin being the capo di tutti capi and the richest man in the world (circa 200 billion!)...oh, and maybe a pedophile.
Putin's aim is clearly to "conquer" the west and as such has useful idiots in virtually all countries working toward that end...Trump, Marine Le Pin from France, Viktor Orban from Hungary, Conte from Italy, etc. There is no doubt that Trump is deeply involved with the Russians and has been for decades. This review may sound paranoid as hell but you definitely will not be thinking that after reading this very scary book.