Vehicle Shudder problems of the 2019 Dodge Grand Caravan

2019 Dodge Grand Caravan. 3. 6 pentastar engine. 60k miles. For over a year it has rough idle and engine vibration at hwy speed. Misfire on cylinder #2 does not go away. Always returns. Have replaced coils, plugs twice and injectors. #2 cylinder misfire still throws engine light. Went to and called Dodge dealer several times about problem. They claim there are no known issues, problems or recalls. They keep trying to tell me it's bad fuel and I should use higher grade fuel. I've done that as well and the misfire on #2 cylinder is always there. The vibration gets so bad sometimes the entire vehicle shakes like your sitting in a massage chair. My wife refuses to drive it anymore and I'm really frustrated that Dodge refuses to acknowledge there is a defect on this engine that is causing this and should be covered by them. It's only a year old and should not be having this problem.