Can a life insurance company deny payment to someone who has chosen NOT to get the Covid vaccination?

Many life insurance policies have suicide clauses, that prevent payment if a person commits suicide within 2–3 years of signing for the policy.

Since vaccination deniers are, in essence, choosing to die rather than preventing or mitigating the virus, they’re making a deliberate choice for suicide.

Can life insurance companies decide to NOT pay benefits for a person who refused to vaccinate?