Gas Recirculation Valve (egr Valve) problems of the 2015 Ford F-350

This vehicle has 42,188 miles to date, and has been down for over 8 weeks due to sensor problems involving the egr and def system. 4 temperature sensors were initially replaced, and then the particulate sensor showed a fault. That sensor was $146. 55! as of today, that sensor is bad again and Ford states there is a updated one for $200. 99! the emissions warranty runs out as soon as you drive it off the lot! I have spent nearly $800. 00, and this vehicle sits, as the check engine light keeps it in limp mode. This vehicle is maintained in perfect condition. If the epa is going to require these emission standards, then vehicle manufactures should be liable for these costly repairs! I recently found out that there are delete kits to eliminate this issue. However they void the warranty and it is unlawful to do so. I can see why they are doing this. Frankly, I dont see the point in a "handful" of us trying to keep ours running to code, while others are ripping this pollution stuff off. I don;t see the point. However I am totallyl frustrated at a $70,000. 00 pickup that remains broke down. You can't even trade them off if they are having def issues. I read quite often about state, county and city vehicles that are having the same issues, and that keeps them off the road for snow plowing and a host of other duties. This issue needs addressed and resolved. Talk about a safety issue: driving home in the dark and this thing decides to limp off the road. Always a weekend or after hours. And service shops are so far behind it takes weeks to get in. This is outlandish that the us is trying to reduce emissions while the rest of the planet could care less. What is the point? I am a reasonable person, but I do not see the point. Clue me in please.