> Prohibiting a user of your software from modifying it and using it to run their business goes against both freedoms 0 and 1.

It does not prohibit modifications - it just demands that those who exercise the freedoms share their modifications under the same license, and most businesses balk at that.

> The anti-commerce bent of a subset of the free software zealots hate business so much...

The root of the problem is actually the anti-free-software bent that business zealots have, because they want to be able take code for free and make money off of it without giving any of their changes back under the same terms; open-source contributors are not suckers to be exploited. Things would be so much better if the moochers weren't trying to capture all of the value downstream of other people's work, but just some or even most of it.