Trump isn’t being kept busy with Greenland, Trump is keeping the news cycle busy.
It’s “wag the dog”, and has been a standard GOP ploy for years now. Like how he banned trans folks from the military during his impeachment hearings, right when they were talking about the Magnitsky Act and how it impacted Putin and Trump.
No one thinks it’s going to happen, it’s to keep everyone distracted as he takes office and starts dismantling things and consolidating power. If it actually could happen they’ll cross that bridge when they come to it.
Stock price is still way up compared so 2022, security issues notwithstanding. Why fight battles that won’t impact the bottom line?