If it were just the MSM, yes.
But it's not just the MSM. It's academia, Silicon Valley, Hollywood, elite sports, the intelligence community, etc. The members of these groups mix and mingle and even when they don't have exactly the same motives they frequently find themselves united together against the best interests of the nation.
As for Trump, his mistake was not cleaning house on day one. He missed the extremely narrow window any President has to truly drain the swamp. Unfortunately, there is nothing that can be done about that now. Any serious attempt at this point would lead to impeachment. He's doing an excellent job appointing judges, a respectable job with regard to foreign policy, and, contrary to what many think, he IS helping actual "conservatism", by inspiring a generation of younger right-leaning activists and fighters, which is something this country will desperately need in the dark (and, unfortunately, likely violent) times that will soon be upon us.