You might be very passionate about your opinion, and there’s nothing wrong with that. However, you shouldn’t be interrupting the other person in the conversation because you are burning to counter their point. If you find that you keep telling that person, “But–”, it might be a sign that you are listening only to talk, rather than actively listening to your conversation partner.
If you are not even giving the other person room to speak, they might feel as though it is useless to elaborate on their position. You will probably find that if you let the other person in the conversation speak, they might feel like it’s easier to talk to you.