I'm not going to move my cart in the grocery aisle
Why do you not want to move your grocery cart?
I don't think it's my responsibility to do so. I paid for the stuff, I should be entitled to take them home without moving the cart. It's not my fault there are too many carts in this aisle.
While it is true that you paid for your groceries, being a decent human being is expected of everyone. It is very selfish and ugly to block off aisles when it is perfectly easy to take one second to move things out of the way. You just tell people you're shallow and selfish.
So what? There are so many people in this world that does selfish shit. It's just a small thing to do for the sake of other people.
If everyone blocked the aisles then no one would be able to go grocery shopping. It takes very little effort and time from you to simply move your cart around. Besides, the faster you move through the store the faster you can leave.