Blender is not to blame. You're drawing a wrong conclusion here. (as stated in a comment of yours)
From your Cura file, I extacted the 3d model as a STL file, and it looks like this:
Nothing wrong with it, it just a water tight triangulated mesh.
Cura produces a correct tool path, nothing remarkable there either.
The red marks on both pictures indicate where the infill lines meet the perimeter walls.
You can also see that the part is already really close to delaminating mid print on lower layers (all of the yellow marks indicate places where it looks like that layer tried to peel but eventually didn't fail to the same extent.
You should try to optimize the settings of your slicer in the (filament temperature, print speed, layer height, cooling) space.
Prusa slicer has a feature related to infill sticking to walls, called Length of the infill anchor:
I didn't find a similar concept in Cura; maybe it could help for your setup, if nothing else works.
Also, you have elephant feet (bootom yello square bracket)