I'm wary of politicians who can actually get things done.
I'd kinda rather have the flailing, failed oligarch who approaches the presidency as a reality TV show with him as the celebrity star, and has no real ideology or agenda other than to bumble through his term(s)...
... Over the successful, cynical oligarch who has the resources and the focus to use the presidency as a tool to carry out his vision.
The problem is that Trump hasn't been ineffective, well okay the GOP under him hasn't.
While he has failed to get any landmark Legislation through beyond his Tax Cuts, he has managed to issue Executive Orders at a way higher rate than Obama, who the GOP declared was trying to rule by Executive Order. In fact Trump's rate of EO's is the highest of any President since Reagan ans 16th over all. Obama was 23rd, behind H.W, Clinton, and W.
On top of that he has appointed a bunch of people whose views are diametrically opposed to the departments they have been put in charge of, and they have been quietly tearing up regulations designed to protect the American Population, their rights, wildlife, and environment, all so that businesses can make more profit without regard to conservation or people's health.
Further, while they failed to over turn the ACA, they have been systematically undermining its foundations so that they can turn around and declare "See we told you if couldn't work."
And probably the most important for the GOP is that they have stacking the courts with young, inexperienced, right-wing Judges, trying to fill all the positions left vacant because Moscow Mitch refused to conduct any confirmations under Obama. This by itself will effect the course of the country for a generation of more.
So yeah, Trump has been pretty useless while in office, but behind the scenes the GOP has been working hard to tear apart its institutions and stack its Judiciary with like minded justices all the way up to the Supreme Court.