One of the camps are members of the open source movement (developers, promoters and satisfied users) and the other comes from corporations trying to co-opt the

One of the camps are members of the open source movement (developers, promoters and satisfied users) and the other comes from corporations trying to co-opt the term and its good reputation. It's not really a "everyone has a right to an opinion" type of situation. You can go on and support the dilution of the term, just remember when the software development culture has another turn to the worst, you had been a part of the problem.