Yeah... I'm not entirely sure that's all insect damage. Dunno about pinching leaves, though, at this stage- the plants aren't very big, and need all the photosynthesis they can get, especially until they get transplanted into good soil.
Check under every leaf of those cabbage (or broccoli/cauliflower?) plants.. look for tiny, green caterpillars. The damage on the cukes looks a *little* like flea beetle damage, but they usually eat all the way through the leaves, making it look like you shot the plants with tiny BBs.
The soapy water is a good place to start. Then I'd just observe them and see if new damage appears. Sevin also will work (and would work on cabbage worms as well), if needed. I avoid using it when possible, because of the damage it can do to honeybees, but that's not a worry here- no blossoms, no bees. It will be long gone by the time that could be a concern.
Try to transplant them soon... probably under covers of some sort. Vine crops are more sensitive to root damage (and worse, getting root bound) than many plants; if they get too big before you can get them out, they may never do very well. If your soil is still chilly (they really need warm soil... here in the frozen north where we are, we won't even be thinking about planting vines for 5-6 weeks), and you don't think you'll be able to transplant outdoors for over a week, I'd really consider transplanting them into bigger containers... even something like cut down milk cartons or large paper cups... if you use something like that, you can gently slice the container and carefully peel it away from the rootball when you are ready to transplant, and have a much better chance of them doing well.
Summerthyme