What do you mean, they are against bitcoin but they own it? If that's what you mean, it's like what I've been thinking lately. Could it be that they are afraid of bitcoin getting rid of something they control?
Apart from that I am very lucky to have known bitcoin, even now it is one of the assets I hold. And I agree bitcoin is unsettling, for those who don't own it
As in they aren't against Bitcoin, and what it stands for i.e a lot of people I've come across think Bitcoin is bad because they don't know a lot about it or fear making the switch. Rather than, actually understanding what Bitcoin is, and therefore how to use it. Its a common reaction, and once they learn a little bit about Bitcoin then they usually somewhat come to terms with it.
For example, a lot of people don't understand "Bitcoin not being backed by anything" or "its just fake money", and a lot of people think Bitcoin can't be exchanged to this day. Its infuriating for us that are into Bitcoin, but that's what a lot of people think about Bitcoin on the outside. Thus, they don't even entertain the idea of learning about Bitcoin because its too complex for them, and therefore instead of actually having any real reason why they are against Bitcoin, its simply because they haven't bothered to put in the time, and effort it requires to learn it.