Restaurant with halal sign

A lot of restaurants nowadays nationwide have halal sign whether they are owned by the Muslim or not owned by the Muslim, basically they are obtaining halal certificate from any of these corrupt organizations who are issuing these certificates and displaying it, a lot of restaurants buy from Jetros or restaurant depos, machine cut or stunned slaughter meats and sell as halal with certificate posted. Hence, polluting the Muslim food chain with non-halal products and selling us at a premium price.