There is no discrimination here. What you talkin bout? Do not you think that you have a overestimated opinion about yourself?: «professional
arranger», «professional studio», «professional sound engineers», «professional mastereng», «problem is just not in me», my music is the best music in the world, bla-bla-bla.
Maybe your tracks are really not that good (we’ll never know about it, because you do not want to share the links).
Have respect for the Audiojungle team. If they are rejecting your tracks, it’s meant that quality of your music are not enough for this marketplace. Just humble yourself and ceep study further what is popular now.
And it does not matter that your music is recorded in a professional studio. It can be just not interesting (again: we’ll never know about it, because you do not want to share the links).
And the main question: why did you create this stream, if you do not care about the opinions of colleagues? You should write the message to Envato support team. But be sure, they will not give you feedback, because there are thousands authors whith the similar problem. And he is not required to write to everyone the detailed reasons for the rejection. They have already sent you a list of reasons. And your tracks are not suitable for some of these items.
Please, don’t think that I wanted to offend you. Just try to look at this situation from the other side (fresh look)