I have discovered how to get racial bonus to appear in the list for selection during Prepare Carefully!!!

It's slightly complicated but after a day of struggling, here's the steps to correct it. SO! First thing to do is to followthis file path

C:\Program Files (x86)\Steam\SteamApps\workshop\content\294100.

This is assuming you have the same set up as I do. If anything, the final sequence of number are what you need to worry about because that the numerical code for RimWorld. Head there and follow these three file paths (the ten letter sequences are the mods for each race).

C:\Program Files (x86)\Steam\SteamApps\workshop\content\294100\1400238872\Defs\HediffDefs
C:\Program Files (x86)\Steam\SteamApps\workshop\content\294100\1400227853\Defs\HediffDefs
C:\Program Files (x86)\Steam\SteamApps\workshop\content\294100\1400234784\Defs\HediffDefs

In order these are for the: dwarfs, hobbits, and elves. Once you locate the mod folder, go into the Defs and then the HediffDefs folder. There you'll find the xml file for the racial bonus. Open it up (preferably using NotePad++, but anything will do) and locate the line of text that reads like this:

<scenarioCanAdd>false</scenarioCanAdd>

Change that "false" flag to a "true" flag, so it looks like this

<scenarioCanAdd>true</scenarioCanAdd>

Then save the file. Start up RimWorld, load a New Colony and when you go into the Health and Conditions option of Prepare Carefully, you'll now be able to scroll down until you see "Racial Bonus: [race]" for whomever you want.