One in five is quite a bit. To make an extreme example: If one in five people on the street were looking to stab you, you'd be thinking there's a lot of people wanting you dead.
Also it's ca. one in three among the young men, which is terrifying. And if the "more favorable among heterosexual" holds true for only the male half (I see no reason why it wouldn't), that's even higher among that demographic.
Fuck that's scary.
That is only a good point until you remind them that the government/corporations aren't just entities but also consist of people, any of which could end up being their neighbor tomorrow, hold their next job interview, be their next potential tinder match, etc.
Of course the rest of what you wrote is true too, but I really felt the need to point this out.
To give an example: I'm in data science. As part of a contract work I had access to a csv dump of a database of addresses of all people who ordered campaign material for a specific political campaign. I could have easily sated my own curiosity and checked who in my near vacinity is in that list, as well as the exact amounts that they ordered and some other notes about them. Suddenly it wouldn't just be some corporation anymore but their neighbor.