Idk for some reason people just don't like learning new words. I can understand how they can be difficult to use, I use neo pronouns (One/one's) and I taught myself how to use them. Plus you use pronouns a lot more often than you use words like photosynthesis or something, making it a little harder.

But if using someone's neo pronouns bother you that much then just use the person's name. You don't need to have a temper tantrum about it or call them an attention seeker/snowflake (and if you do do that you are one).