I think you are confusing the laws of living a chaste life by single people vs. people who are homosexually oriented.
All single people are called to live a chaste live, regardless of who they are attracted to. They are all children of God and have immense dignity.
You’re talking about sex.
Some people believe it’s the only reason to live.
The church believes in a properly ordered, and open to life sexual intimacy that is unitive.
Gay people can certainly love someone. Love them deeply. They may not have sex with them. Neither can underage persons, priests, etc.
If I may ask…have you been told by someone that Catholics hate gays or someone who felt that gay people are somehow “less” because of their orientation?
Or is this just about sexual activity?