Don't wipe the piano black B pillars down with anything without washing them first unless you like swirls

Wash them and then apply either a sealant or a paint protection film

Use door handles to close the doors and tell your passengers the same

The piano black plastic is soft, it marks easily.

Absolute worst thing you can do is to wipe them down with anything if they are dirty

If you really must use a lubricating quick detailer.