The solution to this problem is to use Google Takeout to download all of the data in your Chrome profile. When you do that you are given an HTML file that includes all of your Chrome bookmarks. You can then take that file and import it into another Chrome profile. All of those steps are demonstrated in this short video that I recorded last night.
If you find yourself in a situation similar to the person who emailed me last night, watch How to Move Bookmarks from One Chrome Profile to Another.
Watch How to Use Google Takeout in 2022 to learn more about how Google Takeout works and the data that you can export from your Google account.