Is it wrong to end a friendship over my friend's laziness?
Do you need the friend to do something for you?
Not at the moment, but I want to end this friendship because he's too lazy.
I understand that you think your friend is lazy, but you shouldn't end the friendship just because of that. You should accept your friends faults.
I'm a big, open-minded guy. I end friendships just because I want to all the time. Why shouldn't I?
Staying in a friendship is definitely your choice, but it seems a little shallow to end friendships over things like laziness. If his laziness bothers you that much maybe you could try to motivate him to overcome it instead. That might improve your friendship instead of end it.