I'm sorry you feel this way. The best advice I can come up with is, either find a product space you care deeply about and see how far you can take it or swim with the wave and start preparing for coding interviews.
Interestingly, the only places I've interviewed with that deviated from the typical SV coding challenge interview have been the national labs (JPL, LANL, Sandia, etc.). The questions they asked were much more focused on my interests as well as evaluating my general software engineering skills. I did an internship at one of them last year and it looks like I might be headed back there this summer too. Hoping I don't get locked into the national labs scene permanently.