>>23
If everybody had the right to all four freedoms to free software, then there would be no need of the GPL as it would be superfluous. The reality is, people feel the need to trap users into helplessness (deprive users of source code or deprive the right to run modified programs) and divide users from cooperating (deprive users the right to share software or modifications to the software). The power to subjugate users into helplessness and division is not a power that is worth protecting.
If you understand this, then the GPL is very simple: give users the right to all four freedoms of free software. All that legalese is for the people that don't understand that
"this licensed software is intended to guarantee the four rights to all recipients of the software".