Tha argument is that you need to be admitted with a Visa, and VWP is the opposite...that's where I'm getting conflicted too.
https://www.uscis.gov/policy-manual/volume-7-part-b-chapter-7
Welcome to the world of @Boiler. He's short and direct. With time, you'll understand him within first reading. As of now, you may have to read 10 times and scratch your head a little.
But he's knowledgeable. So worth the reading.
What @Boiler is saying is that there's no chance of them getting B-2. This is what I also wanted to say when I asked you if you're familiar with "Bogota and B-2s"
Colombians are notorious for overstaying in US. As of today, Mexico has put a strict measure on them because they're now using Mexico as a catapult to get into US via border and claim frivolous asylum. A lot of them are being denied/ being deported as soon as they land in Mexico. There was such a post here a month ago.
I know. But you're battling something you have no control of. Just take whatever they give you and call it a day.
You have to leave. So, take what you can get.