Hull and slice the fresh strawberries into even pieces. Set aside 1/4 cup for the garnish, and toss the remaining berries with 1 tablespoon of sugar to draw out their natural juices. Allow them to macerate for 10 minutes.
In a large bowl, beat the softened cream cheese until smooth and fluffy—approximately 2 minutes using an electric mixer. Add the sugar, vanilla extract, and strawberry gelatin powder, then continue beating until fully incorporated and silky smooth.
Gently fold the thawed Cool Whip into the cream cheese mixture using a rubber spatula. Use a light hand and fold from the bottom up, rather than stirring, to maintain the airy texture.
Fold in the macerated strawberries, being careful not to overmix. The goal is to create beautiful swirls of strawberry throughout the filling, not a uniform pink mixture.
Spoon the mixture into the graham cracker crust, creating an even layer. For a more professional presentation, use an offset spatula to smooth the top.
Cover the pie loosely with plastic wrap and refrigerate for at least 4 hours, but preferably overnight. This extended chilling time allows the flavors to meld and the filling to set properly.
Just before serving, decorate with the reserved fresh strawberries and additional whipped cream if desired. A light dusting of crushed graham crackers adds an elegant finishing touch.