Rechtsschutzversicherung terminated by ARAG after a single claim — every new insurer now rejects me. What are my options?

ARAG terminated my legal expenses insurance after I used it once for a tenancy matter. The termination came from them, not me.

Every new application asks whether a previous insurer terminated the policy. Once I say yes, I'm declined. Several brokers have tried; none could place me.

Questions:

1. Any insurers that accept applicants with a prior insurer-initiated termination — waiting period, higher deductible, or tenancy excluded?
2. Is an anonymous Risiko-Voranfrage via broker better than more formal applications that add to the decline record?
3. Is a Rechtsschutz termination logged in a shared industry system, and for how long?