Yeah, I mostly agree... but at the same time, part of the issue is that in Trump's situation it's maybe not necessary to have a political machine in the first place.
The Republican establishment already tried to kill him politically in the beginning, but in the end if people vote for him, it doesn't really matter what any DC organization says. No one needs to see a TV commercial to know who he is. No one needs to have a debate organized in order to hear from him. He's immune to a lot of the survival requirements that would usually take money and organization in order for someone to meet. It's still useful to have an organization and get stuff done, but not having it doesn't make it impossible for everyone to vote for him.
(And, of course, it works the other way too -- progressive candidates with a sizable enough how-many-votes advantage can still win elections, even if the media / DNC / all usual advantages are stacked against them, because in the end the votes are what actually matter) (Nevada ratfuckery notwithstanding)