here’s the problem: responding angrily to something makes you sound like your argument is based on a knee-jerk emotional reaction rather than fact. you can cite as many sources as you want, but you have no credibility once you’ve insulted the person you’re arguing against. not only have you lost the opportunity to change someone’s opinion, but you’ve now associated any correct arguments you’ve used with petty, whining, childish behavior, and that association will apply to every future conversation your opponent has about the topic, no matter who it’s with. in a perfect world, people would be able to separate logical arguments from someone’s inability to express their opinion civilly, but we don’t live in that world.
tl;dr swearing at someone will not prove your point, even if you’re right.