When my DM realizes I made his "Uber-epic Gritty Realism" game into a plot about the baking economy and kicks me out

When my DM realizes I made his "Uber-epic Gritty Realism" game into a plot about the baking economy and kicks me out

So a while back the DM I had been playing with had slowly been turning into a "everything must be realistic and gritty just like Game of Thrones" sperglord and I was starting to get sick of his crap when he pulled shit like "your burning hands sucks up the air in the hallway and you take 5d6 suffocation damage". He thought he understood physics because he was in the National Guard and had "seen real combat". So I decided to teach him a lesson about how the real world works.

We started a new campaign because just like the last five before this we had all died at low levels due to incompetent DM bullcrap and people had lost interest. Our DM promised it would be a different story this time, and he was giving us gestalt characters who would be more powerful and could do whatever they wanted. Whatever, he said, he'd probably still be pulling stupid farcical shenanigans to try and make the game "gritty". The worst part about our grit-and-realism-obsessed DM is that he kept saying he was making things more realistic with new rules and classes, but they turned out to be even more broken than D&D 3.5 was at the outset. In this version of the only campaign this DM knew how to run, we were allowed to pick between Fighter (Which our DM was convinced was the most powerful class in the game), Rogue, Ranger, Paladin, Monk, Bard, Barbarian, and three different "Magus" classes that he had made himself after playing Final Fantasy too much because they were Red, Black and White Magi. After reading over the new rules, it quickly became apparent that anyone who didn't gestalt into one of the three Magi classes was going to be left behind, I quickly selected the Red and White magi as my classes. Lucky for us, he had also completely unbalanced the races and grabbed the human that granted not only a +2 bonus to wisdom and charisma but two bonus feats at first level.

Now, all of the other players had picked very flashy spells/options. One guy was a Paladin/Fighter who was so full of himself because he was half of the party's damage at first level, we'll call him Rayzus, because that's the character's name. Another, who was actually pretty clever, was a Monk/Red Mage called Zar, who contributed the rest of the damage through punching touch spells into people. The DM's girlfriend was a bit of a complete skank and attention whore and decided to go Rogue/Black Mage and try to be some kind of necromancer called Brit. However, I picked the Red/White Mage combo, and thus Marshal Mathers was born. Nobody got the reference despite all of them listening to Eminem. While everyone else was doing all this flashy damage and running into big fights, but Marshal stayed back. He handed out buffs when he felt like it, he spent a lot of time invisible or just outside fights, and he healed his allies after they came trudging back from fights, not during them. Luckily, through my conniving at keeping Marshal unnoticeable, the DM never really payed much attention to him. He always made fun of me for not ever taking fireball or lightning bolt, but he never noticed when I laid a Heroism and Haste on everyone and they stomped a combat he was planning on using to kill them while Marshal simply stayed in the cart or ship and started baking.

After several deaths, several people leaving and several new people joining, the DM finally noticed Marshal and tried to mess with him, but by then, Marshal was actually a huge part of the economy of the region, being directly tied to several lords because the DM never cared about me taking 20 on my crafting checks to make food. The only thing that Marsh was tied to at all was baking and the economy of baking. He was barely affected by any of the deaths and shenanigans that screwed with the other players' goal of some god-sword that I forgot to care about. Now, the DM came to the conclusion that the only way to actually do anything to Marshal was to bring in a baker that was to be his rival.

This rival came in the form of some weirdly accented guy that had the same accent as every other weirdly accented guy. So, Marshal called in favors from his compatriots who he had loaned gold and healing to throughout their adventures. They assassinated this new rival in the middle of the night and nobody ever found out what was happening. This kind of pissed the DM off, but he couldn't argue against it because it was "realistic" and "something Marshal would have done".

After several assassinated rivals, the DM finally brought his A-game and made a master Baker who had a castle and an army defending him. Unfortunately, the DM forgot how much money and treasure he had allowed Marshal to build up. By hiring out all the Lords who were allied with Marshal, he equipped all of their troops with +1 weapons and armor and sent thousands of troops at the castle with his allies leading the charge. Upon the crashing death of the master Baker at the hands of Rayzus's fifth character still named Rayzus (He wasn't particularly creative), the DM finally realized that I had completely thrown the campaign off the the rails by making it all about Marshal's rivals in baking. He then told me to leave and not come back.

It was my third most proud moment in tabletop.