Honestly, the privilege and entitlement of some people. You made a thing, you did a lot of work, you gave it away for free. Nobody stole it from you. Nobody even asked you to make it. You created this situation yourself. And now you're upset that nobody paid you for the thing you make for free?

"But but but... companies are making money... off the thing... that I gave them for free!! How dare they!! There is no way I could have seen this coming!!" - Either you were ignorant and didn't realize people would sell the thing you gave away, or you knew about it and are now pretending to be outraged at the thing you knew was going to happen.

"But but but... they should pay me anyway, because they're profiting off my labor! It's what's fair!!" - What's fair is for someone to take you at your (and your software license's) word, to do exactly what you told them they could do (profit off it). What's not fair is to turn around after they're hooked on your free thing, and try to force them to pay you for it, after the fact.

The point of open source is only to open up the source code, allow people to contribute, collaborate, and share. If you want to get paid for it too, don't put an open source license on it. It's that simple. Add whatever terms you want. But don't make FOSS and then later say it's unfair for people to do exactly what your license said they could do.