"Made to Penetrate / Forcible Envelopement" in their usual CDC definition are not including all the the male equivalents to their definition of rape, either. Many are hidden away even further.

The penetration can be done by, but not on an object or body part other than the vagina, anus or mouth. By the way, did you ever hear of sounding? That is the penetration of the urethra, which, in contrast to the urethra of women, is part of the reproductive system of men as it is used to deliver ejaculate. It is possible to do that on a penis with a whole finger. Anyway.
Anal penetration on me by a dildo would be rape. Making me penetrate a fleshlight would not be rape, neither made to penetrate by the CDC. Imitating intercourse on my ass with a hand, finger or fist, any other phallic-like shaped body part or object would be rape, imitating intercourse on my dick with a hand, finger, fist, any other ring or hole-like shape or using my foreskin under use of any body part or object of any shape would not be rape, nor made to penetrate by the CDC.

Neither the rape definitions, nor the made to penetrate definitions properly include male victims of rape unless you point me to a credible definition of "made to penetrate" I did not yet come across that explicitly includes the cases I just pointed out - that might be possible.

In the end, whenever some definition or law uses the word "penetration" alone, it is therefore unreasonable to assume it to be gender neutral. In most cases, penetration is considered to be only possible on vagina, anus and mouth, but by absolutely everything, making it far from gender neutral.

You can also interpret their phrasing yourself via the questions on page 106 of the 2010 report.

All of this also applies to the regularily cited, purely statistical and legally irrelevant FBI "definition", which imo has more issues than this, but that'll be its own post one day.

“The penetration, no matter how slight, of the vagina or anus with any body part or object, or oral penetration by a sex organ of another person, without the consent of the victim.” [...]

The new UCR SRS definition of rape does not change Federal or state criminal codes or impact charging and prosecution on the Federal, State or local level, it simply means that rape will be more accurately reported nationwide. https://www.justice.gov/archives/opa/blog/updated-definition-rape

Edit: Same goes for the NIBRS etc. Please see this comment of mine for further clarifications: https://www.reddit.com/r/LeftWingMaleAdvocates/comments/lrm69c/comment/goo1ew1