Hi,
I am going to indulge you with an atempt at a serious answer to a not particularly serios question
I recon that if you released your domestic bunnies the following would probably happen,
They would get eaten and preyed on as they would not be street wise enough to take care of themselves.
The ones that survived that would be chased away by the colony that they tried to infiltrate.
Any that managed to infiltrate would not be mated with (I'm asuming they are females) if the were defective colours (white \ patchy - some stalions will not mate with mares of certain colous)
and finally any that were able to overcome all these challenges would be too big to fit down the burrow!
Buffy