Give Kyle a break. From what I understand from Eric Cartman who has met his mom...
Well!
Kyle's mom is a bitch,
She's a big fat bitch,
She's the biggest bitch in the whole wide world
She's a stupid bitch,
If there ever was a bitch,
She's a bitch to all the boys and girls.
Monday she's a bitch,
On Tuesday she's a bitch,
On Wednesday to Saturday she's a bitch
Then on Sunday, just to be different,
She's a super King Kamehameha bi-atch!
Have you ever met my friend Kyle's Mom?
She's the biggest bitch in the whole wide world.
She's a mean ole bitch 'cause she has stupid hair,
She a bitch, bitch, bitch, bitch, bitch, bitch, bitch,
Bitch, bitch, bitch, bitch, bitch, bitch, bitch, bitch,
She's a stupid bitch!
Kyle's mom's a bitch and she's just a dirty bitch!
Kyle's mom is a bitch, aah.
So it's understandable that he is by admission an unrepentant thieving git.