Cracked Steering Wheel

I just noticed some major cracks at the base of my steering wheel (’65 Valiant Base). Is this a safety issue? Should the wheel be replaced? If no, can the cracks be patched with a JB Weld type product? The car is just a weekend puddle jumper. See attached photos.View attachment MVC-019F.jpg

View attachment MVC-018F.jpg

Thanks
Mike