Is Amy Schumer a Joke Thief?

Amy Schumer has quickly gone from a touring comic to a Hollywood favorite.  Her rise to mainstream fame started in 2013 when her Comedy Central series Inside Amy Schumer debuted. The series has since been nominated for several awards. She also wrote and starred in the 2015 comedy, Trainwreck.  But does she owe her success to other comics?

Amy is being called out on twitter as a joke thief by Tammy Pescatelli who is a very well respected comedienne in the industry.  Tammy tweeted the examples below to support her claim. (You can read the tweets on her page, here.)

Warning: The videos below contain NSFW language.

In the first video you can see a joke about women dressing their men from Tammy's 2006 comedy special:

Here's how Amy used the joke in her movie:

This example features a different female comic, Kathleen Madigan.

Here's what Amy did on her Comedy Central show.

There's no question that there are similarities in the bits.  What do you think - does Amy steal material?