Unfortunately, there are A LOT of duplicate entries in Wikitree. I've merged "orphaned" profiles with mine, and you can do that without further ado. For the two "orphaned" profiles that match, you just need to click on "adopt this profile," then merge them.
Merges will often result in a long chain-reaction of other merges and you'll need to devote a bit of time to getting it all cleaned up. And as soon as you come on one that has a profile manager, you'll need the manager's cooperation to complete the merge.
I find that a lot of managers are reluctant to do these, and there could be several reasons for that.
1. There is conflicting data that the manager doesn't know how to resolve. (Well-documented reliable sources should help here!)
2. There are some messy profiles out there that will be time-consuming to clean up after the merge.
3. Those "chain-reactions" can be very time-consuming and the manager may not be able to devote the time to doing everything needed.
I'm sure there are other reasons.
I'm with you on getting these duplicate records cleaned up, but it's going to require time and patience. There are no quick fixes or easy answers.