As in - I'm not saying that vaccines will kill you, but (list of bullshit bad things that will happen if you get the vaccines). The - I'm only trying to help codswallop.
He sets out to discourage people from getting vaccines and judging from a lot of his other statements, he does so as a means to put into practice his egomaniacal (and prejudicial) ideas of what is and isn't good for humanity. A humanity defined more by who he thinks should be left off the list.
He has wanted for years to have the national platform and power he has now to put his warped thinking into action. His is, quite literally, using the America people as his test subjects, pushing his self-aggrandizing and conjecture-based "ideas" onto the nation.
He sees himself as some sort of healing spiritual guru and that people need only follow his advice to achieve good health - though he is the typical do as I say and not as I do hypocrite and charlatan.
He vaccinated his own children and he, himself, got vaccinations. Probably still does - shingles, pneumonia shots, etc..
He will kill people and there is no way he can legitimately claim it wasn't intentional.
The man knows better - he simply doesn't care because he's out to prove himself right.