every time someone uses the term "bae" i want to punch a hole through their face
That is another one that should only ever be used ironically.
like, I can't like stand when people, like, say the word "like" like a dozen times in like one sentence. It, like, makes them sound so repetitive, clueless, and chattery and I wanna like punch them in their faces!
... Yeah, I don't think that's how people actually talk, but there's definitely a ridiculous amount of "likes" in an average person's speech. If people actually THOUGHT about what they were going to say before blabbering, they wouldn't have to stall for time with filler noises.
That's kind of aggressive. Not everybody is a fluid or confident speaker. Filler words don't always have to do with a lack of thought, but often because of an overabundance of thought. People who might be experiencing stress, or may not be confident speakers, or may have some kind of social anxiety that makes it harder for them to talk tend to experience more cognitive load and thus may use more filler words either due to being nervous or feeling overwhelmed to eloquently express their points.
Some of our best modern speakers struggle with filler words many times depending on the situation.
When you experience cognitive load, your brain has to take the time to process what relevant information should be relayed over what shouldn't. Depending on the level of knowledge a person has, preparation time, how general or specific a topic is, and how much time is considered socially acceptable to take before delivering a response, the use of filler words increases or decreases.
As it is awkward to leave a long pause before answering a statement (most listeners expect near instantaneous responses) and it is also awkward to pause mid-sentence, filler words serve an important purpose to help people parse out their thoughts without disrupting the flow of sound. And the expectation that people should think every thought out before responding is not how things work. Everybody should think before they speak, but our current style of communication doesn't allow for that level of patience. Speak or miss out on being heard.
There is also the matter of culture to be considered. The use of "like" repeatedly can be used to create emphasis on something, or just be a natural part of a group of people's speech pattern that has nothing to do with it being a filler word to them.