The RIAA represents WMG, UMG and Sony Music. Each of those has a bunch labels. They themselves are not labels. For instance, WMG corporate has no A&R staff.

The business of music is different than the practice of it, and lumping it all into the "label" itself is disingenuous. The politics within those companies usually means the labels at the very edge (where marketing and A&R are) are often at odds with corporate/RIAA.

When I'm on better a better connection I'll post some examples.

I don't mean to be pedantic about it, but the ecosystem around music is much more complex than "sue them all"