Only a few on Sweet Rocket plants, which are related to brassicas so I expect the Cabbage Whites to get them every year - I keep my eyes open and pick the little beggars off and squidge them. They're the only caterpillars I squidge as I know there are plenty of Cabbage White butterflies about. Others are becoming scarce.
I've not had a problem with caterpillars on hardy geraniums this year but I know some others have this year. I've never had a problem with caterpillars on honeysuckle and only know of one which eats them http://ukmoths.org.uk/show.php?bf=453 and have never heard of them causing real damage.
Anyway, the fact you had kale in your garden will have no effect on the attractiveness or otherwise of your border plants to any butterflies and moths so that's not a problem.
Unless your plants are becoming totally decimated I really wouldn't worry - it's good that you're providing food plants for the caterpillars - we need butterflies and moths to pollinate our fruit, flowers and vegetables.