What else are you going to write CUDA kernels in that will be better than Mojo?
This doesn't compete with Python.
Like if someone wrote a competitor to VHDL that looked like TEMU Python... Python would not be its competitor, VHDL would.
Julia is actually quite nice for this. If you prefer a python-like approach consider Triton from openai, numba (https://numba.pydata.org/) or CuTe DSL from Nvidia.
Python tooling from NVidia itself, which generate the same PTX as CUDA C++.
Julia