If you are on call for infrastructure, then I could understand not wanting to be on call. If I'm there, I'm on call for infrastructure as SRE.

I get all political reasons that your code may not work. However, refusing to be on call doesn't fix any of those reasons, it's just ignoring work. Flip side as SRE, I ask if Devs are on call. If they are not, I don't take the job because there is zero incentive for them to fix anything vs churn out 5 features, chuck it over the fence and be like "Ops problem now"