NFT: Gardening Questions: Curse of the Cabbage

I know there are some knowledgeable gardeners on here (Gidie?) and others so thought I'd look for suggestions here.

My goal with this year's garden was to make my favorite salsa with entirely home grown ingredients (at least for the vegetables).

Tomatoes
Cucumber (yes, it's in there and adds nicely to the salsa)
Bell Peppers
Jalapeno Peppers
Onions
Cilantro

simple.

All those items are in the garden and thriving. Also have eggplant and some san marzano tomatoes and basil that will not be in the salsa.

Problem is my wife said why don't you grow some kale and cabbage too. I had space so I added a few cabbage and kale plants. Not blaming my wife for this fiasco, just saying I normally have zero interest in cabbage or kale.

Kale I was actually surprised, it's been awesome, grows easily and quickly and you can cultivate it multiple times throughout the summer if you do it right and we've had Kale chips, sauteed kale with evoo and garlic, and even just in salads. I'm not a Kale eater but when you grow it I feel like I should eat it.

Problem is the cabbage, it's overtaking the garden, the plants seem very healthy, but they're massive and seem like they're starting to choke out the other plants and block the sun with their massive leaves.

Should I yank them from the garden? can I trim back the leaves at all? In addition I read that cabbage should be planted nowhere near tomatoes and it's not really that close - but how close is close? Also I read that cabbage is a cold weather crop and can grow (sometimes) into October - does that mean these cabbages are just going to be growing like this all summer before being able to pick a head of cabbage, I read it can continue to thrive even after a frost (same with Kale).

So, any advice? I'm leaning toward just pulling the cabbage out.