you underestimate too much. trump is just a face, there are plenty of people working with him and planning all kinds of shit. any kid plans some trickeries while playing board games. what makes you think a political group is incapable of forethought?
be mindful of what info you want out of instagram before opening it. open it, get what you were looking for and get out. dont let it suck you in. turn off notifications. maybe install it in the work profile (if you use android) and leave the profile disabled when youre not using it.
i try to only open it once a week, like i do with my personal email. otherwise i get sucked into it when i procrastinate. but i admit i mostly rely on some friends finding out about local events.