Whether a state court can arbitrarily deprive a defendant of constitutional rights by maintaining a conviction without subject matter jurisdiction

1) Is a State Courts Subject Matter Jurisdiction REALLY NECESSARY and imprison a defendant? 2) Can a State Court Arbitrarily deprive a defendant of the State Const,codes and defining case law to get and/or keep a conviction? If lack of Subject Matter Jurisdiction on a Trial Court conviction is discovered and challenged years later shouldnt the State Court atleast review the claim? 4) /Khyi.does the Texas Justice system reward prosecutors and "State Bar" defense Attorneys who hide evidence of a courts lack of Subject Matter Jurisdiction years later by denying to review it or denying the writ for procedural issues? 5) Will the United States Supreme Court allow a State Courts illegal conviction acqured without Subject Matter Jurisdiction to stand?to convict