It’s not entirely incorrect. The two party system is designed to force both parties to appeal to the average person. But when one side goes radical and still appeals to a big chunk of voters, the other side has to consider how to capture those voters too. In the case of the democrats, that means taking an extremely conservative approach to countering the Republicans, because they somehow still believe there’s a chance Republican voters will swing towards them. Young people are looking for a far more left wing government than the democrats are providing and so voter apathy among that demographic is so high, leading to this spiral. There are people fighting for sure, but the average is moving to the right.
I also work in automotive, all of the messages related to starting the car (which is required for climate control) or unlocking the vehicle will be encrypted with keys you will not be able to extract. Many have MAC authentication and counters for invalid attempts. Too many wrong hits and you’ll trigger a DTC which may need a visit to the mechanic to clear. Furthermore, a lot of the behaviours you want to trigger that are done via the app normally use a telematics unit in the car that will authenticate with the OEM server. You will not be able to get this authentication. Sorry to be the bearer of bad news, but what you’re trying to do is exactly what car thieves wish they could do, which is why we put in every effort to make it extremely hard.