It is simple. Remove your emotions as you listen to my explaination of why.
1. They control all Military and legal Para-Military forces.
2. They have control over most of the means of production for food, clothing, energy, water, and even shelter.
3. They outnumber us about 7 to 1, when considering only White people. When you add in the other ethnicities that may attempt to side with them in hopes they will not be next, they outnumber us nearly 8.5 to 1.
4. They also have more weapons than we do among the civilians, since most of our enclaves are Democratic ran cities that seek to keep guns out of the hands of residences.
5. They control most of the emergency services.
6. They would have air superiority, sea superiority, and land superiority because of the previous points.
7. They would have absolute logistical control over the combat theaters.
8. Access to long range weaponry and military drones.
There are many more points, but the above should be enough. No, an outright war with them would not be to our benefit at all. Most of you would know this, if you had a military background. Any idea that we would come out of it ok is outright ignorance of what we would be dealing with.
Edit: This is why you should have a plan to get those important to you out of the country if they move to do this. If you want to stay and fight, and I am since I am sick anyway. you may as well try to take some of them with us. Still in the end, this is not a war we could win.