You're thinking about it completely wrong. Majors are high-jacking an entire release season, do you see that? It takes roughly 2 months for a record's completion through the printing process.
At this rate, Q2 will become obsolete for small indies unless they give into the pressure of releasing on RSD. That's bunk as hell.
The plants need to tell the majors NO or put restrictions on 1. the number of records they are allowed to press 2. the quantity they are allowed to press. This way, indies can still release a record between March-May and not be burdened by a capitalist "holiday" they do not wish to participate in
I don't know what to tell you. Until some types of restrictions happen, they have to adjust. That's what comes with running a business, the ability to change when a problem arises.
I'm not saying it's right, but I don't think it's necessarily corrupt that majors flood record makers with requests with demands for RSD. It's been that way for about 5 years now and obviously continues to grow.