I'm sure you meant The Shredder.
And they have stereotypical NY accents, I fail to see what their names have to do with how they talk....do you really think because they have Italian names that the turtles are Italian? On that same note, I can't count how many Italian Jersey and NY friends I have that sound like this.
Also, it's winter so they aren't going outside? They don't go out int he day? You watched the cartoons and read the comics right?
This movie has a shit ton of things wrong with it, you're picking all the wrong things and getting the others incorrect.