When someone on the Left gets triggered and want to make sure you know you should say you are welcome.
If they ask you to explain point out that since they spend so much time being easily offended and outraged and morally superior that they must at a deep level LIKE being offended etc ... may even get some sort of dopamine hit from the emotional rollercoaster. So since you’ve just helped to make them happy you wanted to say they were welcome (not that you expect thanks).
Excellent retort. I’ll try to remember this!