Anti-Kurdish sentiment is when some people have negative feelings towards the Kurdish people.
Imagine if you had a group of friends who always wore a special hat. But then one day, some people started saying mean things about your friends just because they wore their special hat. That's kind of what anti-Kurdish sentiment is like.
The Kurdish people live in different parts of the world, mostly in the Middle East. They have their own language and culture, and some Kurds want to have their own country. But some other people don't like that idea and might say mean things or treat Kurds unfairly just because of who they are.
It's not fair to treat someone badly just because of who they are or where they come from. Everyone should be treated with respect, no matter what language they speak or what country they're from.