Thawed frozen fresh strawberries, can i refreeze them
Refreeze them if you aren't using right away

Your strawberries started out well below freezing point of water. Home freezers operate at close to 0 F. Cooling is a function of temperature difference between substance and surroundings. Your strawberries are in no danger, unless they were absolutely covered in bacteria before freezing, like you had rubbed rotten halibut on them for some reason.

Any texture will be changed with freezing and blending, so don't worry about that.

I like frozen fruit in smoothies, as it gives thick texture without ice addition.